Just to add some more info RE conventional gear VS tricycle in models:
comparing a car's steering to an airplanes isn't IMO valid, mostly because of where the motive force to move the vehicle comes from.
(think of how long it took US car manufacturers to switch to front wheel drive... even though front wheel cars are easier to drive particularly in slippery conditions, they are not necessarily easier to manufacture... particularly when you need to re-engineer your cars and the production lines on which they are made)... so just because cars have the steering on the front wheels, that does not necessarily make them better or easier to drive.
Cars have front steering and boats have rear steering mostly because they are easier to manufacture that way.

with an airplane you have a relatively large propeller (imparting large amounts of torque in a different direction than the one the vehicle is moving in)
and here is where that long arm (between the main landing gear and the tail) can work against you. once the tail leaves the ground, you've got a VERY long lever, (from the wheels to the tail) with a VERY powerful control surface at the end (the rudder) and on the other relatively short arm (between the main landing gear and the prop) you've got a very large amount of torque trying to twist the aircraft in a different direction than the airplane is traveling.
the combination of those two things, aggravated by the lack of instrumentation and 'seat of the pants feel' (because the pilot is not sitting inside the airplane)
makes the airplane VERY sensitive to differences both in engine torque, and in rudder control. in short, it is much more difficult to 'tame' an RC taildragger than it is to tame the same airplane in a full scale version.
with a tricycle gear airplane, the plane is ONLY on two wheels once it's achieved flying speed, and the airplane is rotated for take off.

nose wheeled (full scale) airplanes have become the norm for just about everything except bush planes for a reason.... they ARE very simply MUCH EASIER to control on take off and on landing.
(perhaps that should read it's much more difficult to LOSE control on takeoff and landing. ;D )
Bush planes are designed for a very specific purpose: to be flown at or near their weight capacity from short and / or unimproved runways, and even from relatively flat surfaces off airport.
incidentally, (Full scale) Bush pilots are among the most capable, yet bush airplanes have the worst safety record than any other aircraft type.

your statement "When looking at stability, the tail wheel being far from the CG, will make it impossible for the plane to tip forward or backward when going over the bumps."
isn't true. what is far more important (with a taildragger) is the distance between the MAIN LG and the CG.
(if the LG is forward of the CG, but only slightly forward, the airplane will easily nose over when power is applied)
with a nose wheeled airplane, there is NO way the airplane is going to tip over forward, and since the main landing gear is well behind the CG, there's no chance of it tipping backward either.
(on full scale airplanes, a nose over / prop strike is SERIOUS business... a couple thousand dollars for the prop, complete engine tear down (sudden stoppage inspection) cost to repair the runway etc... and this for a fixed pitch prop)
nose wheeled full scale airplanes realistically only only have this issue on one occasion... when the pilot forgets to put the landing gear down it's almost unheard of on a fixed gear, tricycle airplane.


ALSO you can easily use the same servo to control both the rudder and the nosewheel steering... it's a very common practice.

Sorry for the long post!