I must agree with Benchmonster. I can't do many chins anymore, and when I get a wild hair and do some, my elbow and biceps hurt. So no more chins.
If you want to get thicker for bench then stick with barbell and dumbbell rows. Pulldowns with over and under hand grips also work good. And yes deadlifting will make your upper back thicker and stronger so it is something good to do too. I also do some pulley rows from time to time, they seem to hit the right area.
As far as reps go, I usually stick around 5-6 reps of whatever exercise I pick. It just varies, I like low reps more than high reps so that's what I use. I just try to do a few more sets of low reps.
If you want to get thicker for bench then stick with barbell and dumbbell rows. Pulldowns with over and under hand grips also work good. And yes deadlifting will make your upper back thicker and stronger so it is something good to do too. I also do some pulley rows from time to time, they seem to hit the right area.
As far as reps go, I usually stick around 5-6 reps of whatever exercise I pick. It just varies, I like low reps more than high reps so that's what I use. I just try to do a few more sets of low reps.