As long as they provide good support I'd rather not have the underwire poking me. I have both, if you're going to be wearing a bra fro extended periods of time the bra without the underwire is more comfortable. I'm a smal B-cup so I don't need a whole lot of support anyway.
Underwire, it helps keep them up and feels comfortable
yeah i like underwire. i have small boobs that don't really need a ton of support, but it makes them look less awkward i guess haha. and the underwire is not uncomfortable for me at all. i never even feel it.