York is the major brand that we sell, so i'm probably biased. The TM9V is a really good furnace and I love the LX series of AC and heat pumps, much more than the York affinity. It is cheaper and I believe it's a better system. You can match the 14.5 Seer outdoor unit with variable speed motor and txv to achieve almost 16 Seer. I think with the 3 ton it will match to 16 Seer and the others are 15.6+. We have installed many like this and have had no problems... knock on wood
2300 sq ft 1992 home shouldn't need a big furnace. Above average number of windows, maybe a 80,000 95plus% furnace.
On the coldest days, did your current 114,000 80% have to run 24/7 to keep your house warm? or did it cycle on and off.