If you had the choice what trype of pack would you go for?

the last time around I went for a 5 cell NiMH pack and was pretty please with the results, but with the greater demand of more powerful servos, what now?

Is NiCd better for the current draw is is NiMH better for lower pack weight?

I still don't think I trust Lipo for a flight pack, but maybe one day I will..