2 completely different speakers with different strength/weaknesses. This truly is a "get out and listen to them" situation. By all accounts they're both good speakers and the Metas are a cool concept. I wanna check those out.
I don't know if the KEFs will be "better", but I'll bet different enough to feel like you changed something. You have a local B&M with a return policy? I'd say it's worth a test run at home if possible.