Deleting pages: 410, 404 or remove manually in Google webmaster tool

[Zivush]

I get the impression that the only thing works to improve ranking after Panda is deleting low performing pages – the 0 to tiny traffic pages.
I am still thinking of deleting 200 pages – should I go for 410, 404 or remove manually in Google webmaster tool using the removal tool.
(404: delete with no action)
Which method is better?

[goodroi]

You could also debate whether to use a 301 redirect.

[indyank]

I get the impression that the only thing works to improve ranking after Panda is deleting low performing pages – the 0 to tiny traffic pages.

My tests have shown that it doesn't make any difference...

[rowtc2]

I show 404 header and remove via WMT.

[Zivush]

Thinking more, you damn right indyank.
There aren't many indicators for deleting content makes any difference although it makes sense..

Being passive has never been a strong point for me BUT I guess no other choice right now.

[g1smd]

I show 410 and let Google handle automatically. It can take several months for all of the URLs to vanish from the SERPs.