In terms of MCs who do it right, how has Jeff Seaton not been mentioned? He's one of the elite, and arguably the best, MCs in all of FIRST. He keeps the events lively in a professional and enthusiastic manner. HIs wardrobe is not over the top in itself, but he'll wear just about anything that a team offers him to wear for their match (including
203's soup can) and has a great
sense of humor. There's a reason he's one of the division MCs at Championship each year, he's excellent.
And he's arguably an even better game announcer than he is an MC, as he's shown during the last two Washington DC regionals where he's deferred the MCing job to Blair.
Jeff manages to stay both professional and entertaining. He's not uptight about what he'll wear or do with the teams on the field, and it helps engage both the drive teams, the team's "fans," and the crowd as a whole. But that's his style, and it would not work for every MC.
Some MCs work off of their wardrobe and "gags." They would be out of their element and even worse if they didn't. That's how they engage the audience, and I would prefer them to engage the audience rather than to be boring.