I asked this question on the mathews forum and I'd say the most popular replies were the LX, Conquest, MQ1 by far. There were some Legacy, Q2XL, outback, and ovation posts as well.
As other's have said I think it depends on what you want from the bow and how it feels with your own personal dynamic.
But I can say the most popular bows I seem to hear about from them are the LX, and MQ1, and for pure target the conquest of course. The MQ1 comes up a lot on posts asking about a bow people have sold and wished they'd have kept.