I find the A319 F seats to be more comfortable than the 737 and oasis 321. If I'm paying for first, I seek out the A319. If I'm fishing for an upgrade, I avoid it because it's so difficult to get moved up front. As stated above, the only aircraft that would be more comfortable in first would be a wide body, and I'm guessing there's not enough demand for that right now. I prefer the second row so I can have under seat storage, but the bulkheads not terrible as far as bulkheads are concerned.