I've been using CubaseVST for a couple of years, and still like it for my purposes--songwriting, recording guitars, vocals, and pianos samples. (Before that I was using an older version of Cakewalk.)
However, I see a lot of praise for Logic (but don't want to go Mac), the latest version of Sonar, and am curious about the many other programs that are either sequencers or include sequencers.
My basic needs are just "home studio" multitracking and overdubbing, and support for VST effects and VST instruments. Cubase of course does all of these. Am I missing much by staying with this older Cubase if I want mainly "realism" with a lot of control?