Welcome back
I forgot - it took a few days/posts before I could change my avatar etc., and it told me to stop spamming if I posted too often for a couple of days, but then it all went back to normal.
I haven't stayed at any of those Marriotts except the Fairfield. I thought it was a little bit tired, but it was fine. In general, I would pick a SpringHill or Courtyard over a Fairfield. I'm Marriott Platinum, so my thoughts about the different chains also have to do with status, and my preference between the brands has a lot to do with traveling with kids, .
Fairfield - breakfast is free and OK, rooms tend to be smaller. The one in the Marriott village had a room with a bunkbed (LO loved this). The room was small and dark, but reasonably clean.
SpringHill - standard room layout is good for the family - can usually get 2 doubles (or queens) plus a pullout in a standard room. Sometimes they have other room layouts which are even better (family suites) and I've had decent luck getting upgraded to those. I think their free breakfast is worse than Fairfield, actually, but will still get you fed in the morning for free.
Courtyard - no free breakfast. Rooms are just regular hotel rooms - kids have to share a queen sized bed (my kids really do not like sharing a bed). With Platinum status can get 2 vouchers for $10 each per night. This just about covers a breakfast sandwich + coffee most places. Not crazy about the breakfast sandwiches. Can also be used for snacks/other items at the Bistro (even booze), so if we aren't breakfasting at the hotel, this is sometimes a good thing.
Based on the prices you quoted, I'd pick the SpringHill suites, personally.