I'll take either over WinDOS any day
I once saw a tee-shirt which read "I'll take LA over NY any day". There was the LA skyline reflected off the Ocean.... Underneath, upside-down, was I'll take NY over LA any day", with Manhattan reflected off the Hudson... If I'd found it as a poster, I'd have bought it to hang in my Venice (CA) apartment and turn it as my mood saw fit.
Same here. After 7 years w/ SunOS (last time I checked that's still `uname` on a Solaris box) then 7-ish years of mostly Linux (thus dating my SunOS somewhat) my observations are that:
Linux is much more user-friendly in every possible way: easier installs, easier on the wallet, better apps, better GUI's, more convenient packaging, super-convenient flags missing from Solaris for all the common utilities (obviously all dependent on the distro). It scales DOWN better, because it seems to eek more performance for more applications out of a specific (even SPARC) CPU than Solaris.
Solaris is more robust. The threading model is much better, hardly ever, ever crashes, has an NFS client and auto-mounter you can actually trust, and its file systems are faster and more reliable. It scales UP better, because you can take the same binary from the oldest 32 bit SPARC workstation and run it (with some overhead for emulation) on the biggest, baddest 64-bit SPARC hardware available.
Again, most of my Solaris experience is dated, so maybe its gotten more user-friendly at the same time Linux has gotten more robust. YMMV.
I'll take either over WinDOS anyday