Can't really say there is a standard. I've had my fair use of Sony Vegas. While very intuitive and quicker than Premiere or Final Cut, it feels very limited. Sony has also been doing a major face lift on Vegas these past few versions, so I wouldn't get involved with them until they settle down a bit.
It really comes down to what software best coincides with a person's flow. Final Cut is not the best editor for everyone and every task. In general, it does a lot right and does it well (actually A LOT RIGHT, and DOES IT WELL) FCP or FCS as a whole (as most Apple software) has it down pretty well when it comes to intuitive. It also is has fewer limits compared to many Windows editors. I spend most of my time in After Effects, and for that, Premiere is almost a no brainer, especially on a PC (where you don't have the option of Final Cut). Though in all fairness, Final Cut is basically a brainchild of Premiere in a way, you could say.
If you are truly proficient with a program, use it. I've used After Effects for things I could have done in Photoshop (though I really need to learn Photoshop better, for in the long run) or Premiere, but with my knowledge set in Photoshop or Premiere, I would get it done much faster in After Effects. Granted, yes I need a kick in the arse to get Photoshop and Premiere down. Whatever you choose and works for you, become good at it and it will gladly repay you.
For me, what small benefits I will gain from switching to Final Cut is not worth it to swap platforms. I don't do enough important work in Premiere to switch over. I will mostly do After Effects, Photoshop, Illustrator, InDesign, Dreamweaver, and Flash. I think I have way more enough on my plate as it is. Though, I have always been curious to try out Apple's Motion.
Work flow is what it is all about. I have an odd way of doing things, it's systematic and it's just the way I work. I want to see Apple push more products out though, as Adobe has stepped up their game but could definitely do more. And that's all I want to say about this, as I'll do what ever it takes to keep this thread from becoming a PC/MAC Editing Platform behemoth monster blackhole abyss thread
It's preference, PC and Mac both win, Yay yay, everyone is a winner!