I like both the 150 and 152, but slightly prefer the 150. The big difference for a student is that the later 150s with electric flaps have no indent, so you have to stop the flaps up/down \t the required position. The 152 has indents, so you just put the lever in the required indent. I think this is a bigger difference than the degrees of flap.
Some 150s -Aerobats- have a 125 hp engine.