jk, I see what you mean. For me, it's really all about how fun the tennis is to watch. I get that excitement more from Fed (and to a lesser extent Nadal) than from any other player. I don't really care a whole lot about the personalities (and it wouldn't make a difference to me since all three seem to be pretty nice)... unless it's Zverev.
I've always liked Nadal's personality but I like Federer's tennis better. I'm always confused when people group them together because their styles are nothing alike. Personality is probably what I look at 1st tbh. I don't think Fed is a bad guy or anything, just guarded.