The sight and sound of ARod turns me off, so he could be the best announcer in the world, and I wouldn't be able to stand him. Apparently, he was pretty good when he worked in the studio (I didn't listen to him), but I don't like him at all as an announcer.
Outside of the Sunday night crew, I really haven't had any issues with ESPN announcers. I like Sutcliffe, as do you. I probably have a bias towards David Ross, but I didn't have a problem with him in the booth.