4-bolts are a bit stonger, and better if you are doing Coil overs. 3 bolts are fine though. With Coilovers, a lot of stress is put on the strut bolt. With 3 bolt plates, all 3 bolts lie to one side of the Strut bolt. This is fine for stock spring locations, not good for CO. 4 bolts are also more difficult to install as they require some drilling.
I went with the maximum motorsports plates for the adjustability, reputation, and 4th bolt.