Max,
All my training and GFt was performed on the R22, not out of choice but simpley because it was the Heli that the FTO used that was nearest to my house/business, after that I did the usual conversion course's to the R44 and the B206, a lot of people critisize the R22 but at a cost £ it serves to get you able to fly a helicopter, the downside is, it is so twitchy and subject to do funny things in moments of high stress ( like hover taxiing downwind ) that once you have mastered it it seems like a dream flying something which is larger ie R44 or B206
Regards
PeterR-b