With any gun, I want 100% reliability, decent accuracy, a decent trigger and good sights.
Hell, I can get that with a Glock a $40 pair of sights and 10 minutes of Dremeling
People get the idea that if something "feels" lighter/better/softer/faster, it actually is lighter/better/softer/faster.
Two things matter in this game, points and time. I doubt that spending more $$$ will get you more points and less time
So my advice would be go for a the cheapest competitive factory gun and make sure it runs 100%