I personally prefer my Lely. I can get parts from a local vendor that normally has them in stock. I've had them for years with no issues. I have the Type L 1500 and it allows me to cover a lot of acreage very quickly. They also have a tow-behind model as well.
But if you want to get in the big-boy category, take a look at an Adams. Most of my fertilizer reps have the two-ton turf model that they loan out when they sell fert. Many have had them for many, many years. Something I'd like to come across if I ever find a good used one.
http://www.adamsfertequip.com/products/turf?id=17