I love this debate I have some people think a mig weld looks good when it doesnt thats one thing and learning to mig weld is easy learning to mig weld well is not , and there are a few things stick is better for , but it is the myth of stick allways being stronger is just that its the same alloy with a cleaner process, PROPERLY laid mig is as strong as stick on mild steel it just is. joint prep is still the # 1 reason for weld failure
Look at it this way. Who here wants to call Case, Caterpillar and John Deere to tell them, "Hey, just to let you know, I was having this little chat on the net with guys that know lots more then you do and I wanted to be the first to tell you that all your CNC MIG welded industrial equipment has inferior welds."
Just about every major assembly line in the country from cars to tractors and everything in between use MIG.