Pelfrey's out pitch is a plus slider. His curve must not be very special, because I've seen him pitch a few times and I haven't seen/noticed it. Probably a show-me pitch.
As for Hughes, I saw him pitch last year and he was throwing the slider (at least that's what it looked like). Maybe they had him scrap it after the injury? Who knows. When I saw it, it was a pretty damn good pitch. Hopefully he'll get the call up to Columbus and I'll be able to check him out. I'd assume if he can throw a plus-slider, like he was doing, he has a good curveball. Sliders are generally much more difficult than curves.
I guess it's just our personal preference on Pelfrey/Billingsley. I'm not taking anything away from Billingsley, I think he's going to be nasty and be a Cy Young contender for years to come - I just think these three guys have higher ceilings.
Last thing - when talking of Billingsley's disappointing debut, I wasn't speaking of it from his development point of view, but more from his prospect status point of view (if that makes any sense). He has the poise and maturity (it seems) that the few things he will take from his big league stint are his mistakes - and he will learn from them. However, scouts and guys who do up the prospect lists can't really take this into consideration - they look at performance and ceiling. There's no way Billingsley's debut will help his prospect status - it might not hurt it much, but it won't help it - but I'm sure it'll help him as a pitcher.
I do think Bailey should be the highest of the four guys we've been discussing. Assuming he continues to have this type of year (obviously not 0 ERA with ridiculous K numbers), and he continues to mature, it would be hard to keep him out of that spot. IMO, he'd be a top 6 guy right now if the list were to come out today. I can't wait to see some of the mid-season prospect rankings.
It would have been much more fun if we decided to throw guys like Yovani Gallardo, Brandon Erbe, Radhames Liz, Garza, and Adenhart into the fire, 'cause I'm sure those guys are all over the place on everyones lists.