I Still keep a foot in both camps and FlingWing has just about summed it up, the Schweizer is a fantastic trainer, the robbie a cost effective (for a helicopter) personal transport.
My personal bias was toward the R22 as I learned to fly in it, but having now spent a few hundred hours in a CBi the space is a godsend when teaching anyone over 140lb, and even though the MAUW is less than the C model it is still adecent trainer.
There will always be debate over which is better, I'd say neither, they both have their uses.
Cheer
V.