Lincoln and Miller noth make fine machines. HObard and ESAB also makes good machines, but I think Miller and Lincoln are the most popular brands.
Both types of welders have their purppose. A stick is good on heavy materials and you can get quite a large variety of rods to weld just about anything. If you deal with lots of painted and rusted metals stick would be the way unless you clean it up first. MIG is easy as running a caulking or hot glue gun. It does not make much smoke if you use the gas process however the flux core wire is just as smokey as a stick electrode is. If your gonna deal with light gage metals MIG would be the way to go. Most of the smaller migs only weld up to perhaps 1/4 or 5/16, and then its with flux core wire. If most of your welding is outside in windy or breezy conditions flux core or stick would be better than gas.
Just what is going to be your primary use for this welder?
Yes a 220 VAC model is much better than a 115 unit, as they usually can wled heavier metals and have better duty cycles. Most of the more common sizes of MIG or Stick units commonly found in home and farm shops will require a 50 or 60 amp power source.
Lincolns AC/DC 225 machine is a great stick welder. Miller makes and equivelant model and so does the other two companies mentioned above. All make a great entry level MIG machine as well. Odds are unless you really know your welders, you could be blindfolded and use machines from each of ther big four manufacturers and never know the difference or what brand you were using.