of course I'm biased on my reply......I've tried too many cars to list.
my favorite by far are the Yoks.
the BDM doesn't need any hop ups...
probably only a spring set and a wide bumper.
the current Yok lineup is more for asphalt racing thus the chassis have flex.
The LCG has the most flex of the two.
Parts for the BD are probably easier to find/order. Yokomo USA usually has parts for the BD in stock if not there are several other sources. check to see if your LHS can order from Yokomo.
Drivetrain parts for the LCG are the same as current SD series parts so quite easy to find, but keep in mind gear ratio is 2.35 so not the best at running stock brushless. BD will allow a greater adjustable with spur gear selections.
A lipo battery fits easily into the chassis. Take a look at the BD thread for pics.
BD is a bit easier to setup than the LCG, but for the most part based on the same platform as someone mentioned earlier.
The current suspension parts are pretty tough, (think I've only broken 1 arm).
always have a few extra steering plates in your parts box, other than that a super amount of parts are not needed.
and to top it off the car is pure eye candy.
look around at the track and get feel for what might be best for you in the long run....
but I'm sure you keep wanting a Yok in the long run