Just from what I've seen about this year:
Timmy - many (30%)
Shocker - many (20%)
Angel - many (20%)
Ego - quite a lot, increasing (10%)
E-cockers - quite a lot, but decreasing (10%)
The rest (the other 10%):
Impulse - still a few about
Cyborg - very few
Viking - the odd one here or there
Freestyle - not seen any
These numbers are only rough guesses, and I'm sure other people will have their own ideas on this.