Merino wool is always good, but they're expensive... maybe if you do loooong days out in the wild (once or twice a week) may be worth it to have the best.
I ride mostly resort at not so hardcore conditions, and sometimes go 3-4 days in a week or in a row, so i have several socks not necessarily top of the line. My favourites are Under Armour, perfect cushion, stay tight... neat.
Burton are really comfy and perfect thickness, but a little slippery... MAYBE in your case they might work (ie the liner will slide a bit instead of pulling your socks).
Instance are super comfortable, and cool styles; thicker tham the others.
I also have DC medium cushion... really nice, these are the thinnest. But very good quality.