I still love the VAX. Even after all these years it still seems like a robust computer, much for the reason bdfh42 cited: it's built to last. Alas, how many computers are built with that intention today? I don't use Windows anymore, but the the SIMH VAX simulator used to work great on XP; it was very fast. Does it still work on Windows 8?
Data General Nova, Eclipse
Digital Equipment Corporation PDP-1, PDP-4, PDP-7,
PDP-8, PDP-9, PDP-10, PDP-11, PDP-15, VAX
GRI Corporation GRI-909, GRI-99
IBM 1401, 1620, 1130, 7090/7094, System 3
Interdata (Perkin-Elmer) 16b and 32b systems
Hewlett-Packard 2114, 2115, 2116, 2100, 21MX, 1000
Honeywell H316/H516
MITS Altair 8800, with both 8080 and Z80
Royal-Mcbee LGP-30, LGP-21
Scientific Data Systems SDS 940
SWTP 6800
P.S. I see now that vaxdigitalnh's comment has been resurrected.
Heh, VAX assembly language is arguably [1] the peak of the CISC instruction set movement.
[1] Some folks that x86 has taken that crown away as it continues to become more specialized but instruction 'feature sets' are, to my way of thinking, somewhat different than the base architecture.