I'm a diehard Cicada fan. Somehow the little bugs are my best mech, despite being far from the best mechs in the game.
I love Crabs now too. The playstyles are darned similar, you just gain a bit more durability, firepower, and armor, for a bit less speed.
So far the 27SL I do JJs (one short of maxed), 2 LPL, 3 MPL. - this is my favorite one to play, I should really consider downgrading to 3 MLs on another LPL, and try to get more DHS to make it do better with heat, I just love Pulses too much due to being almost pinpoint, but still just enough time to correct instead of just missing. Either way, the speed plus the jumpjets is spectacular. It's mobile as hell with a nasty alphastrike.
20 - 350 XL, 2 LL, 3 ML. - Flat out my best Crab, and one of my best mechs. 121.9 kph with speed tweak, amazing brawling damage, ok range from the LLs, though those could certainly be better. Good heat curve since it's all standard energy. Room for Heatsinks in the torso. Either way, fantastic mech.
I forget the designations of the other two.
But the one with the ERLL Quirks runs 3 ERLLs. It's solid. No two ways about it. Nice long range firepower. I need to remember to hold back more.
The final one (Also the "Resistance" one in my case) is the one I never get much of a handle on. I think it's doing 2 LPL and 3 MLs currently. but I've done all sorts of random stuff with it, tried two ERPPCs, two normal PPCs. It's very generic energy quirks though. so easy to tweak. Just don't know what I really want to do with it yet.