Lol. Sableye really shines against physical attackers and Trick Roomers/Boosting sweepers (and is quite handy against Amoonguss in some cases), but I don't use him too much either, and I still think he's necessary. I think Discharge is better for the Paralysis and for the spread damage, and since about 2/3 of the team has either protect or wide guard, the team doesn't have to worry about it too much either. Are you using Togekiss? I'm trying Garchomp out in place of it to see how it goes, and I haven't lost yet (although I've only played 5 battles :P).