With the standard blue ilvl 26 options, 1h + oh gives 33int and 12stam, + whatever secondaries you get, vs 31int 10stam + secondaries for a staff (+1 extra int if you do the int enchant on it). Obviously epic foamspittle blows either out of the water, but if you aren't committed to farming that or just want to know what's best in the mean time, go with a 1h. For monks, this probably means a blue weapon from a BG crate, as I don't think there are any usable 1h int monk weapons that come from dungeons. The off hand will either be a blue BG one, or eerie stable lantern from SFK.
If you're gonna commit to the foamspittle grind, I wouldn't go too far out of your way to get a 1h + OH though. If you get them from BG crates, use em, but otherwise a blue dungeon staff/blue foamspittle is a fine placeholder.