50 may have won the rap battle, but his mainstream music is terrible whereas Ja gave us great crossover hits. And since 50 isn't a great hardcore rapper anyway, then who really won?
IOW, give me classic party jams like Livin It Up or Always on Time over cloying repetitive crap like Candy Shop or Just A Little Bit any day. 50's raps there are as whack as anything he accused Ja of doing.
Edit: OK, I'll give you In The Club, that one was good. But all his follow ups were poor imitations.