Wow, what a mix of opinions!
welded f/r....I have to first start by saying give a welded f/r rig gas to get around a corner is bullshit.(especially in his setup;no hydro etc.) You ever see this work on the rocks in a akward position? Didn't think so.
ARB's.....The only people who have airline problems are those who don't take the time to route them correctly. If you don't get stingy with the zip ties and take your time to think about were your routing them you'll have 0 problems.
ez-locks etc.....Broke them and seen to many break.
E lockers....No personal excperience,but enjoyed watching my buddy Luke pull out his blanket everytime we went wheeling to engage it.(It's wired now
)
welded....**** worked for me.
Any type of locker used has failed someone. I think that around here it would be worth spending the $ for a selectable locker up front. It will probably save some other damage at least one time. The rear is just prefrance, but if on a budget I say WELD the rear and spend your $ on a SELECTABLE UP FRONT!
Get some Longfeilds if you don't have them already. If the 30spline's are to much $. Try to find some used 27 splines. Longfeilds are invaluable.