I personally think panel size does matter. The reason I used to love my magenpans and ascent's had alot to do with the wall of a sound they threw. If tradition speakers could match this wall of sound and keep the benifits of dynamics, etc, nobody would even consider panels. I think its that wall of sound that really takes them to another level. I do agree the logans have other advantages, but that wall of sound makes the speakers disapear. And while the term wall of sound may or may not be a audiophile term or something that may or may not be good, It makes music listening very real and definately makes you feel like the musicians are in front of you, which is more important to me, then how transparent, or how much detail is pulled from the recording. Panel speakers just make good music, you got to love them for that.
Ive owned ascent, ascent i's, aeon i's. My experience was the bigger the better, same with magnepan. If ml has managed to create as big of a sound out of a aeon size speaker as the ascent i's, I got to hear them! aeon i's had the famous microperf by the way, which is the way they claim to be able to downsize and keep same usable surface area, x stat is the only difference(crossovers).)