I have a Champion Fighter that I converted from UA7 to 2024, but I haven't had the chance to play him yet. Basically, when both my daughter's friends come over, we play the main campaign with the three of them as PCs and me as the DM. If only one of her friends comes over, we play one of the two secondary campaigns were I DM as well as play a PC.
In one of those secondary campaigns, they have a Wizard and a Druid, so I chose to play a Fighter to tank for them. I purposely made him a Champion because it seemed to be simpler for me to run while also DMing. He was working pretty well for me while I was using the UA7 build, and the 2024 version doesn't seem too different from what we saw in the UA, so I can't wait to play some more with him and see how it goes (now that we've reached level 3 and the subclass will kick in).