Todge,
I have flown in both (only 12hours so far) and I much prefer the warrior. The main reason is the width of the cockpit - the PA28 is just wider and more comfortable.
It sounds as if you are getting a better deal timewise as well with the warrior, but you don't mention the cost per hour - would this outweigh other considerations?
Also, don't choose the flying school just on the basis of the aircraft type - what about the instructors, the people, what is aircraft availability like etc. Which is the less busy aerodrome? Time spent holding counts in your logbook, but is hardly productive when learning to fly!
SD
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Hoping and praying should never be confused with planning...