RE: What ATV ?
I have a 450es and it has a pull start for a backup.
As far as what model to buy, anything but a belt drive. I've seen too many belt drives get muddy or wet and they will not go anywhere when they do. My buddy bought the 660 yamaha and the first weekend got it in the mud and the next week it was in the shop getting a new belt and warranty doesn't covering it. My other buddy has a polaris with a belt drive and when it gets wet it don't go.
The yamaha's and honda's in the 350 to 500 range are great. My 450 has the option of 2 or 4 wheel drive and I really like that. The two wheel drive is really fun in the mud and snow, you can really dirt track it.