My experience,

Summit is the closest. It feels the best to me. But it's barebones and has some hiccups. I had a comment post 14 times this morning. I have high hopes for this one though.

Connect seems the most stable and works well.

Jerboa and Liftoff both work well when they're working. But they've had some bugs and I prefer Connect to them at this point.

My recommendation is to use Connect until you get Lemmy figured out. Then try them all out.