Both are good machines. I use to work at a coal mine on the drag line crew and we had the Lincoln portable welders with the gas engines and in the shop we had the 220v Miller machines. Hobart use to make a pretty good wire machine so it all depends on your preference. Like the other folks have said don't buy a bunch of stuff right away just the basics on what you need for class and then you get the other stuff later. Just remember that Welders do it in all positions. 
