I know very little about photography, but no camera is going to stop the sun reflecting off of people's t-shirts. You could get your subjects to wear those cone things they put on dogs after surgery to stop the reflections though.

A high ISO isn't going to make any difference as far as I'm aware... in bright light you want to be using the lowest ISO, and even then you'll probably have to squeeze your light hole to stop excessive light coming in.

The only thing I can assume would help when shooting in bright sunlight would be a decent lens, that should minimise lens flares and the like. So yeah, there might be certain cameras with fancy settings and gimmicky features that are geared towards shooting in bright sunlight, but decent lenses are probably the way to go over a fancy camera.

One thing you could do is get your subject to face away from the sun so the clothing isn't reflecting on the face. Then just make sure the sun isn;t in the frame and use a powerful flash to make sure they're lit sufficiently due to the shadow their body will cast on the portion of them facing away from the camera.

That could all be nonsense, I'm just guessing... but I think most of it is nearly right!

Gain and ISO are reasonably similar. I most cases, these are all things that you want when it comes to shooting in dark conditions. SO forget about ISO and gain.

What's wrong with your videos apart from the colour of people's clothes reflecting on their faces? (That's an issue between the sun, the light it emits, the clothes people are wearing and the current status of the weather/atmosphere... all things that your camera isn't equipped to alter.) If people know what specific issues you're having, then they'll be in a better position to advise.

Have you tried using ND filters? They'll block out a chunk of sunlight before it even reaches the lens, so you're not forced to tighten your pipe, and all that jazz. 

You could use a variable neutral density filter to keep a wider aperture and isolate the subject from the background.  I don't think the camera you use should matter much.

Gain and ISO are reasonably similar. I most cases, these are all things that you want when it comes to shooting in dark conditions. SO forget about ISO and gain.

What's wrong with your videos apart from the colour of people's clothes reflecting on their faces? (That's an issue between the sun, the light it emits, the clothes people are wearing and the current status of the weather/atmosphere... all things that your camera isn't equipped to alter.) If people know what specific issues you're having, then they'll be in a better position to advise.

Have you tried using ND filters? They'll block out a chunk of sunlight before it even reaches the lens, so you're not forced to tighten your pipe, and all that jazz.

You'll be wanting to use the lowest iso as possible, and a polarizing filter will help with the reflections. If it's too bright toss on a couple Neutral Density filters and you'd have a good start, then focus on the lens.

High ISO means more grain ... though there was a topic a few years back that a slight increase in ISO gave crisper photos, I wouldn't suggest ruining a set of shots to test that theory. ISO is like ... the inverse to light. The brighter the lighting, the lower ISO. The dimmer, the higher.

Honestly not sure where you heard that high ISO would help with that but, they were wrong. Maybe see if there are some basic photography courses at the local college or at the very least do some online training. A sound knowledge of photography mechanics is handy, even for a hobbyist.

"...do poorly in bright sunlight."

What exactly do you mean by this? What is it that you're not happy with?

But how do you define "working well in bright sunlight" though? If people know exactly what it is that you're not happy with (or what it is you're looking to achieve) then they should be able to advise whether a different camera will help, whether different settings on that camera will help, a different lens, a different filter or whether there's not really much you can do.

I mean... are you getting lots of lens flares, are your images overexposed, blown out, lacking contrast, too much contrast, too dark, too much grain, too much noise, the colours are all wrong etc etc?

Also, what settings do you use... do you shoot on auto or do you use full manual controls? Have you played with the shutter speed, stopping down the lens, playing with white balance etc?

You might be better off asking the question in a video specialist forum like this one http://www.eoshd.com/comments/forum/4-eoshd/

shooting in bright sunlight is very easy, decrease your fstop or increase your shutterspeed or both, if its still too bright, ask God to dim the sun

I think the op is probably struggling with contrast.  ND filters don't help much with that.  It doesn't help that the op hasn't told us what the actual problem is.

Also, polarizing filters reduce glare (reflection of bright light off of a smooth surface). They will do absolutely nothing to prevent color "bleed" onto people's skin.

Let me rephrase my question.

I am shopping to buy a new video camera.

Which camera will give me the best quality video in bright sunlight? What specs can I look for in a camera that can identify which camera will give me the best quality video in bright sunlight?

Thankyou

Let me rephrase my question.

I am shopping to buy a new video camera.

Which camera will give me the best quality video in bright sunlight? What specs can I look for in a camera that can identify which camera will give me the best quality video in bright sunlight?

Thankyou

You've rephrased the question enough, but you've still not provided enough information to explain what it is you're looking for. What you need to do is explain exactly what it is that you're not satisfied with. And please don't say that you're just not satisfied with their performance in bright light. You need to say exactly what it is, specifically, that you're not happy with.