What is fair current market rent for this ...

offer $2400 or about $44 psf

That is assuming there is nothing extraordinary about the place.... first rate finishes, washer-dryer, Chrysler building view...

what about midtown west in similar type rental?

I've seen the going rate higher than $2400. $2k gets you an upper east walkup thats been renovated ok. Elevator another $200 at least, doorman another $200. And thats the Upper East side, and with some tiny apartments.

These apartments were going for $3500-4000 at peak minimum. And this sounds decent - corner, you like the finishes, high floor, you call it luxury. So even if you knock 20% off, you're still talking $2800-3000.

I might aim a little higher.

2400 sounds about right, but I suspect you can negotiate another 10-15% off of that or get some free months.

http://www.streeteasy.com/nyc/rental/447140-coop-246-west-end-avenue-lincoln-square-new-york

rental building or condo- "luxury" means diff things to diff ppl but ifit's a luxury rental $2,400-$2,500 right now.

Right now its all negotiable nothing is off limits!