If you live anywhere near Southern California, then send me a PM, because you may become my new best friend.
"I'm trying to say the image being letterboxed has nothing to do with 16:9, 4:3 or anamoprhic."
But it has a great deal to do with the *quality* of the the image.
Commercial anamorphic DVDs are made from the original telecine, which has a greater resolution than the subsequent DVD. The LDs that these bootlegs are made from have far less resolution than the telecine, and less resolution than what the DVDs are capable of as well - and the letterbox LDs have even less resolution than the pan-&-scan LDs.
"Well I think anamorphic is ALWAYS better since it can also be viewed normally on a 4:3 tv"
Again, your statement does not take the source material into account. The LDs already have less resolution than the DVDs. Now, if we blow this transfer up to anamorphic status, and then play it on 4x3 mode, you are now removing *even more* resolution to get it to fit on your screen. Point being, on a 4x3 tv, a non-anamorphic bootleg transfer of Star Wars will have more resolution than an anamorphic bootleg transfer of Star Wars. If you have a 4x3 television, then you should watch a non-anamorphic transfer. If you have a widescreen TV, then anamorphic will look fine.
Now, this does not take into account any upsampling of the transfer image when making it anamorphic, but then again, there's still some debate about the best way to do this, so it's not quite the magic bullet that everyone makes it out to be.