Like i tried to tell you earlier, CLE has the least amount of lines, CLE sucks, except if you live there. For holding IAH, I don't know if you mean a line or just being based there. Holding a line a have no idea, but being based there could happen right out of training or take 4 months or so. Holing a line the quickest, goes in this order: EWR, IAH, CLE. I've been based in both IAH and EWR. What are trips like. More Mexico in IAH. Get more overtime in EWR, because of traffic and delays. I enjoy flying out of EWR for the NE flying, but I commute from DAL, so IAH is more ideal. Hope thats helps. If I were you I would base myself in EWR first. From what I remember you live up north, and by your freezingflyboy name, you'll like EWR better than IAH, plus an easier commute. Just don't go to CLE, you'll thank me later