re: Need to buy a decent pair of jeans...

Serious answer, I'm in my mid 20s and I wear Levi's and I have a pair of Ralph Lauren. Like others have said, just get him a gift card to a big department store and let him pick them out. There's a million different cuts, I wore a 30 in some and a 34 in some. That and the width of the leg differences almost gurantees if you pick them out they won't be right for him.