Obviously I'm not a man, but Ken Follett lists Jane Austen http://www.ken-follett.com/faq/index.html as his favorite (dead) author on his web site.
This site http://us.penguingroup.com/static/html/blogs/why-men-should-read-laurie-viera-rigler has a small list of men who admit to liking Jane Austen's books, among them Irvine Welsh, author of Trainspotting. Others named are T.C. Boyle, Michael Chabon, Paul Auster, Kazuo Ishiguro, Danny Boyle, Phil Hilton and Dwayne Wade.
Sir Walter Scott was a known admirer of Jane Austen and her novels. Check what he says: http://www.bartleby.com/303/2/1001.html and http://www.pemberley.com/janeinfo/janeart.html#swscott1 (Anthony Trollope is also quoted here).
This site http://www.theloiterer.org/ashton/polar_bear.html has a list of what famous men have said of Jane Austen. It includes not only Trollope and Scott, but W.H. Auden, G.K. Chesterton, Rudyard Kipling and C.S. Lewis.
Rex Stout, the author of the Nero Wolfe mysteries and quite brilliant, is quoted as saying, "I used to think that men did everything better than women, but that was before I read Jane Austen. I don't think any man ever wrote better than Jane Austen." See http://www.geocities.com/Athens/8907/wolfe_rl.html#a_ja
As far as a personal view, my brother happens to think Jane Austen was brilliant. Yes, he's read some - though not all - of her novels, including Pride and Prejudice. (Even my father enjoyed the Colin Firth A&E version of Pride and Prejudice.)