Whats the best Lipo/regulator combo to use for receiver/servos?

[REVO-DADDY]

This is for my Nitro Revo.

I want to run a Lipo rx pack. I actually have a 7.4 2s 1600 that will fit but I am reading that I may be better of with a 3s. My only concern is that with 3s if the reg goes, so goes my rx and servo's. But I am open to opinions, hence my post!


Whats the best regulator/lipo combo for this application?

Thanks in advance for your help!