Hondo is the second best original character the animated series have introduced, along with Ahsoka.
Oh, and I absolutely love the droids, they've been some of my favorite characters in all of the movies and series. That made it really frustrating that the Meebur Gascon/Droid episodes of TCW were so bad, because usually I love that kind of thing.
I like R2 and C-3P0 in the movies, and BB-8 in Episode VII. I just don't like the droids in animation, because I don't like droid antics that go so over the top and for so long (like in Attack of the Clones). Give me droids in moderation, and doing things that aren't so over the top. The exception to this is Chopper, who I do hate because he has legitimately tried to kill people (the good guys, not the bad guys) and is a gigantic, unlikable a-hole. But I like the main droids well enough, I just don't want to watch 22 minutes of them doing goofy, ridiculous things.
As for Hondo, I've never liked him. He should have been killed during one of TCW episodes, but keeps surviving because the writers like him. Honestly, of all the TCW and Rebels chararacters, he's the one I least understand the popularity of. I can honestly think of reasons people would like Jar Jar easier then I can come up with reasons people could like Hondo. That said, it doesn't bother me that much, not enough to argue about him or anything. I think saying I "hate" him is probably too strong a word. Sometimes I'm a bit too free when it comes to using the "H" word. I don't really hate Hondo, he doesn't offend me with his existence or anything. I just don't find him entertaining.