In an ideal world I would like to teach on the Chipmunk but the cost of maintenance makes basic PPL training on it prohibitively expensive, second choice should be the Piper Cub not as expensive as the Chipmunk but in its own way as nice to fly but still more expensive than the C152.
The bottom line is if we have to use the inexpensive and lacklustre C152 to get people through the front door then so be it, once they have a PPL we can work on getting them into more interesting aircraft.