as Adam said compounds is the way to go
deadlift and squats would be my personal choice over the obvious exercises like sit ups or whatever
however ... alot comes down to your goals... is it just looking good that you are concerned about or your athletic performance the two dont always go together, the likes of mosley mayweather and cotto who you mentioned train every day, they have expert nutritonists and for all we know some 'chemical' help
Bookmarks