Which is the best lipo? and what TC?

[savageracer1]

im starting to race TC again and since i started last time lipos have became huge i will be running a 10.5t brushless set up and i was woundering which would be the best lipo to suit my set up out of these 3:
1. http://demonpowerproducts.co.uk/prod...oducts_id=2272

2. http://demonpowerproducts.co.uk/prod...oducts_id=2272

3. http://demonpowerproducts.co.uk/prod...oducts_id=3049
ovisouly i thought the most expensive will be better but i noticed the diffrent c's one is 25c one is 30c could anyone explain what this is??

also is there a TC that anyone would recomend price is not a issue im looking for a pro spec kit, i dont know what to get as there is so much choice lol.

thanks in advance
Jake