I'm in agreement that S1 was better than S2. S1 had a much smaller, and better acted ensemble, and they were more supporting actors, whereas in this season he is rarely "going in" alone.
Also the more I watch this season the more wooden Reacher appears to be, and as has been said elsewhere, less likeable. Having read several of the books, his ability to "off" people quite casually is true to the books, but appears to me that they are only being a bit more obvious about that character trait lately, which is complicating the persona they've build up to now.
Pity they killed off the cop, mighta been good for just him and reacher for a 3rd season.