I recently bought a new Walther P99c in 9mm insted of the M&Pc 9mm.
I wanted the M&Pc in 9mm, however, M&P's sold in Massachusetts must have a 10 lb. trigger (per Attorney General).
I just don't think I would have been happy with a 10 lb. DAO trigger on the M&P. The Walther P99c has a DA/SA 8.8lb/4.4lb. trigger and a decocker which is sweet.
I am very happy with the walther, extremly accurate, only 18+ oz. empty, but, it doesn't feel as good in the hand as the M&P, and the mag. release takes some getting used to.
I would (under the Mass. 10 lb. trigger circumstances) definatley buy the walther over the M&P if I had to do it all over again, however, I would really have to think it over if it weren't for the Massachusetts requirements.
Oh Yes, I almost forgot, You can't buy new Glocks in Mass., so, I had to rule out those.