When you say dome do you mean both inverted and "regular." The Accuton's and Focals are inverted. What always confuses me a little is the disparity in pricing and how people talk about them. The Morel MDT-33 is only $120 and the Hiquphon's are only $90 but then the others jump to $200 for the Scan-speak revelator and some of Focal's. I don't know which one is better though. I've heard others say the Vifa ring radiator (at less than $100?) is good, but that the Scan-speak ring-radiator isn't that great??? (and several times the price). But the Morel is a good one. I only think the real differences kick in, where what's the best here isn't the best there is if you are crossing over really low, say 2,000hz. And then of course the 3/4" domes will have better off-axis response and freq. increases. The 3/4 are more suited for higher xover points where you can reap the benefits of good off axis, but if the xover is low then its back to the 1", especially if you're going to play loud. I think VMPS stated they feel one of the Focal tweets is the best in the electrodynamic transducer area. I'll leave that diamond Accuton alone.
