The new PA2 from Prodigy is a stable to overstable putter. It is not quite as meaty as the PA1 but is more overstable than the PA3 and PA4. The PA2 will work well for any ability level and can still fly true in mild headwinds.
300 Series - Grippy and chalky rather than waxy, affordable, seasons quickly.
350G - Add even more grip to the 300 Series blend and you've got 350G. Will also season more quickly than the 400 Series.
400 Series - Very durable, long lasting plastic. Think Discraft Elite-Z or Latitude's Lucid line. Great for when you want to throw upshots or for driving with obstacles in the way.
Note: Proto/First Runs carry a small upcharge.