Depends on the serve coming at me and what the opponent is doing. Also, singles returns are A LOT easier than doubles returns. For example, slicing a backhand return in doubles will probably cost you the point at your level which is 4.5. In singles, you can slice your return all day and you'll be ok.
Generally speaking, short swings, firm.
Backhand, more of a block, pushing forwards.
Forehand, more of a push, moving upwards.
I hardly ever get the chance to really "attack" someones serve. If its a high level serve its a gamble. If its a low level serve im probably playing for fun and crushing the ball is not in anyones best interest.
I rock the Tennis Warehouse 9 racket bag. It has enough room for lots of TP.
Babolat Pure Storm Ltd. GT 95 Sq. - Babolat RPM Blast 18 Ga. @ 67 lbs.