Like Dennis I have an old Forney Stick welder that nothing is too big for.
For a Mig I will either go with a Hobart or a Miller as the local welding supply sells and services Millers. All wire feeds are going to need parts and service if you use them much. I for one don't want to have to box one up and ship it off to the far corner of the country for service or wait for weeks for simple parts.