I recommend Homecomin' for a uniquely Disney Springs experience. Great food and service.
The Boathouse is amazing, it's a bit pricey but worth it. They are part of a chain though.
We have been enjoying Enzo's Hideaway quite a bit lately.
Agree with others about Ragland Road. Great food but we typically go later to sit outside, have a few pints, and listen to the live music.
Another fun spot for drinks is Jock Lindsay's Hangar Bar. Be sure to try the Cool Monkey Head and the Reggie's Revenge.
Rainforest and T-Rex are fine but since they are Landry's restaurants you get pretty mid-level service and food.
House of Blues, Bongo's, Splitsville, etc - all have solid options.
Haven't tried Maria and Enzo's nor The Edison yet, so can't say for sure - but have heard good things.
We did STK once and I guess the fact that we haven't been back tells you. It was OK, but so loud and cramped that we found it hard to enjoy our dining experience.
No matter what you choose, you'll have a great time!