Help me choose my lipo!

[Mike.L]

I am stuck on what to buy, i have won a duratrax ice at my track and now im ready for lipo.
I want just one pack so, it has to be enough. More for racing and heavy bashing!
here are my options:

1. Flight power 7.4 4250mAh evolight $89.99
2. Flight power 7.4 3700mAh EVO25 $89.99
3. Flight power 7.4 5000mAh EVO25 $119.99
4. Flight power 7.4 4500mAh EVO30 $124.99
5. Track power 7.4 4900mAh Gold pack $119.99
6. Maxamps 7.4 5000mAh $90.00