152 is a certainly better for training and general air work. She requires a bit more effort to fly accurately, can be chucked around easily, spins nicely but yet is very forgiving. The warrior is great for a GA x country or going further afield...more room, more stable and less tiring (and if you lean it right fairly economical - did long x country last year in the US and got 7.5gals/hr)
All airwork in a 152! Stalling a warrior is benign for the most part...stalling a 152 with power on makes you sit up a bit more, so to speak..and then there is all that spinning fun if you are up at the CPL level!