What about php/ruby for web?

An expert Ruby programmer can do wonders and be insanely productive, but I think there is a size from which it doesn't scale as nicely (both from a performance and a larger team perspective).

PHP's frameworks are fantastic and they hide a lot from an otherwise minefield of a language (though steadily improved over the years).

Both are decent choices if this is what you/your developers know.

But they wouldn't be my personal first choice.