MT all the way! :) I'm not the biggest fan of Pessoa (I owned one and found it to be quite slippery) and HDR (although at least one of their last models I've seen in Dover looked and felt very nicely). As for used ones you can look into Stubben, Duett, Thornhill (last 2 are designed towards wider horses).
"Life isn't about waiting for the storm to pass: it's about learning to dance in the rain..."
"When we are no longer able to change a situation - we are challenged to change ourselves."
"How people treat you is their karma; how you react is yours."