Buggy or 3906 (most power?)

[hoober]

I have a choice to put my most power in my Raze buggy (stock) or my e-maxx (3905 stock)

I'd like to use the second most powerful set-up I own in the other vehicle. I'm not sure which chassis is better suited for the highest sytem I have (it is 6S MMM) My second most powerful is a HV 4.5 on 4 or 5S.

Which chasiss would take advantage of the power better and hold up better? The thing is I've never ever drove an 1/8 scale buggy, and even though it is lighter I will be running them on the exact same track/conditions and think that perhaps the buggy should have the best sytem.

which would you choose?