there are 2 kinds of linux: debian type or red hat type. (terminal commands are different su or sudo)
Wrong! There're more; SuSE, Knoppix/Gentoo and the main difference is in the config locations (/etc/, /etc/sysconfig/...), "sudo" is more an Ubuntu thing than a "Debian" one.
Linux is much better than W7 x64 Ultimate... for a lot of things.
only W7 Ultimate can change OS language & BitLocker Drive encryption.... the other W7 cant (Basic, Starter, Bussines).
W7 Starter & Basic are limited to 2GB Ram, also very limited desktop configuration.
Actually in a Desktop environment with full GUI, Windows 7 can do more with 2Gb or Ram then Xorg with 4... the "missing features", a) why change language?! b) that's just useful for paranoia and I would strongly discourage BitLocker or encrypted filesystems unless you're a pedophile or someone storing "very" (and really, I mean REALLY, not MP3 of you singing in the shower) sensitive data. Encryption will also voids recovering...
Nothing compares to Photoshop on the matters of image editing and certainly not GIMP, as also the OS "alternatives" to AutoDESK products are way lame.
The "surplus" of APT (or it's equivalents, as Yum, Emerge or Yast) is to lure folks who don't even understand what that thing does. You may complaint that you need to update DirectX for a game, but when you apt-get something, it will bring along a shit load of libraries and dependencies. To not mention "versioning", the most annoying feature of all Linuxes.
I'm not an "Anti-Linux" or "Pro-Win" kind of guy, but so far for PC Linux can't yet compare to Windows... maybe one day it will, hopefully.