since doors isn't out yet, Im not sure what my favorite is...

Doors CS isn't out in a final form; the latest beta is 5.8 Beta 4.  When I finish with finals, I'll get back on track to complete it.

It does indeed appear so.  Perhaps it should be called a tie until further progress is made in one or the other shell?

Further progress has been made on Doors CS.  I will be releasing 6.0 Release Candidate 2.1 this evening; I'll edit or post when it's out.  As far as I can tell, it should be almost rock-solidly stable.

Haha, my vote broke the tiebreaker between Doors and MOS.

Why MOS is better than DoorsCS:
-Easier navigation
-Smaller size (but why do I care, I have an 83+ Silver after all...)
-Has almost never crashed for me (unlike Doors... )
-Can easily identify different or relating programs (Doors shows a huge icon and the program name in size 2 font)

What DoorsCS needs to be better than MOS:
-Calc-to-internet connection instead of calc-to-computer-wit-idle-internet-to-internet connection
-Smaller size
-Easier navigation (maybe like choosing between icon and list display types)

There's my summary .

I'd say nostub FTW, but that's not a shell, so it doesn't count. Nostub=capacity to modify routines to your own needs.

Otherwise I'd say MOS, as it is relatively small, has a great number of useful functionalities for both user and programmers.

Then I'd say either DCS or ION, DCS being for it's huge compatibility, compensed by it's totally intrusive, evil and useless GUI, ION being for it's relatively small size and good amount of useful routines (who uses all MOS routines anyway?).

I [still] choose CruncyOS:

Because it saves writeback data into an appvar, there is almost never any Garbage Collecting.  Even though there's only 10k of Archive free on my calc, I only get garbage collection messages every five to ten games rather than every single game I play, like what happens with MirageOS and Ion, and DCS (if it didn't act weird when it needs to Garbage Collect), so on someone who had like 30k free of archive, they could play a lot of games before having to garbage collect.

Also, since the writebacks get saved into appvars, it dosen't get saved back into the original game, so if anything bad happens in which the game would write something bad back to itself that caused problems later (like that one game that did that and it kept crashing every time you ran it), all you'd have to do to fix it is just delete the appvar and boom, it works again.

Oh, and CruncyOS can run compressed games, and you can also pack games into CruncyOS itself to save lots of space on your calc, keep your program menu in TIOS clean, and makes it a breeze to transfer games to another calc 'cause you'd only have to transfer the CruncyOS App.

Well I got about over a hundred or so items on my TI-83+ black edition as of now, so I need all the space I can get