I have rather a soft spot for the dear old C152... and I actually find the PA28-140 that I've been checked out in slightly dull :o The nav kit is superb... but it just doesn't like being thrown around as much as the C152. Maybe it's because I have many more hours in the cessna, and don't feel so at home in the cherokee.
Of course neither compare to the wonderful Chipmunk
*goes off into daydream*