I would take the PA28. I've flown in all the types and taught in all the types. The PA28 is the most capable and comfortable of all three.
The C152 is just awful in terms of comfort ( unless you are a dwarf).
The low slung wing on the piper makes for better inflight visibility...and if you are in the summer, the piper may be equippeed with air conditioning.
AS far as ease of flying...the PA28 and C172/152 are all in the same league. Twitchy in crosswind...boy, I wouldn't use that description for anything.
I've landed PA28 (arrow) in 60 knot winds (KMRY).
I would also choose california over florida...you can do some mountain flying in california, and again the PA28 is better there in my view.
NEVER pay up front!