lipo mah vs. weight vs. heat vs. c rating

[DrKnow65]

Another lipo question, but not the same ole' question...

Those of you guys with multiple lipo's and rigs (lincpimp types), when you chose your lipo's for a rc set-up which way do you tend to go;

1) big mah, heavy, low C rating (single pack)
2) small mah, light, high C rating (single pack)
3) option 1 with multiple packs
4) option 2 with multiple packs

I didn't list specific vehilces or mah's as each rig will dictate the needs (amps & voltage), but if we need to be more specific, I'm one of the many waiting on the MMM to put first into a converted hyper7 (custom motor mount above the diff, custom trays) then later on to a direct-to-diff-revo. I'm looking at doing 6S lipos in both rigs (mabey even the same lipos) with an 8xl or the castle/neu if it isn't toooooo far off.