Agamon
Adventurer
I was meaning crunch, but I agree with the statement above and will surely check out Old School Hack. My players are used to 3rd edition´s (and Pathfinder´s) tons of crunch. When looking at a more rules light system crunch-wise they get the feeling that they can´t realize their character concepts with it. That´s why they hesitate to even try it out. I guess this basically boils down to the fact that they, at least most of them enjoy the character creation mini-game of these editions (and yes, min-maxing).
The problem is, rules-lite literally means crunch-lite. So a rules-lite game isn't rules-lite anymore if PC creation is crunch-heavy.
Of course, one of the reasons for rules-lite games is the ability for the players to make their PCs whatever they want without worrying if there's a page with a rule written about it somewhere. But that doesn't look like what your players are looking for.