These are some great posts from capable people gere. I am a mere tenderfoot and not in the same league as these guys but would like to offer my experience. I am retired now but spent a long time in the remote country with a stick welder and no guidance. My welds were dreadful and the guys here are right with the "practice" comments. Then we moved to a closer area and I took a welding class at a tech school. We started with stick welders but my stick welding skills still sucked. I just couldn't get enough practice in.
Then, I used a MIG wire-feed welder and that night--nearly from the get-go--my welds looked way better. And they were better with good penetration and pleasing appearance. They were so good that I ditched the stick welder because the practice reqired exceed the time I could give to it. Guys that are good stick welders are a class unto themselves. It's now easy for them because they have already devoted the time, energy and frequent practice to stay that way. I'm just a casual user and forget what I learned by the next time I weld.
Wire feed is very forgiving that way. That is, after you understand the basics of clean metal and proper setup. In retrospect, I should have gone to wire feed earlier and should have found a good welder and paid him to teach me. Short of that, I am now a good wire-feed welder in most positions and I am, for the first time, happy and confident about my welding. Were I to take up stick now, I feel I would get it right. Sure I could use a bigger welder for thicker steel and yes, I would like to be able to stick weld but for my skill level, and frequency of use, wire feed worked for me. Just my two cents on this.