Jim and Kim hands down. Though I always found Mark likable, I preferred him back in the David Weiss/Susan Murphy era. The Breakfast Club has become so contrived and repetitive, and their traffic reports have tanked completely (in the afternoons, too, though KT Mills is as good as ever). And I'd so much prefer Al Lewis or Scott Miller filing in, instead of a "Best of..." rerun. At least they're still better than WBLI, which I thought gave them a run for their money when Steve and Maria were there. I find Jim and Kim natural and likable, and would prefer their company (despite guest appearances by Denise Flaim of Newsday). How many shows talk about books they've read recently?
I also like B-103 in the morning, Chaz & AJ from CT, and WLNG anytime.