brushless advice

[squeeforever]

i am currently trying to decide on what brushless setup to run and am having trouble deciding. what would offer the most over-all power? i want a lehner because from what i hear there alot better motor over the feigao. also i would prefer to get a good speed controller under 200. also if you could, would you please tell me the max number of cells the motor could handle w/o problems and series or paralle? any help would be much appreciated.
thanks