QUAD vs Martin Logan vs Magnepan

Probably a turn-off to most readers, it's one of those 'how long is a piece of string' type questions. But here goes...
To those of you with experience of 2 or more of the above company's modern speaker products, which have you found to be the more persuasive speaker. In other words which is best. I realise Magnepan & ML have an extensive range of speakers but I guess my question is aimed at which evermodel they put out to compete with the Quad (ESL 989?)

My reasoning is simple, it's difficult to find a dealer where I live who would have any of the above never mind all three to do a 'shootout'. I have recently joined the ranks of Maggie owners with the MMG's which I'm impressed with - but I'm just curious to see how good things can get if you start to spend a few more $$$