I had never heard of the guy before, and now he is 7/8 in Gibraltar.
Vitiugov tied for 1st-3rd in Aeroflot open (one of the strongest open tournaments) 2011. He has also participated in several Russian Championship Superfinals (where only strong GM`s are able to play).
My two cents:
Richard Rapport and Ilya Nyzhnik are certainly worth watching, but they are very young. I would look for their best advancement in 2014 for Richard, and later for Ilya.
Vitiugov was impressive in Gibralter, but for right now look no further than Fabiano Caruana and Max Vachier Lagrave, the college-age cats.
The best (also college-age) player in the world, Mr. Carlsen, is impressed by both of them.
I would add that Max Vachier-Lagrave is the only guy in the world really feared by Magnus --- and with good reason. Check the record between the two.
The most exciting world championship match would be between them, I think. And I hope someday it happens, but first, Max has to be as cold to draws as Magnus is.
They are both geniuses, with Magnus probably the greater.
Vitiugov is sheduled to play in the Alekhine Memorial (April 20 - May 1) in Paris against some of the world's best. It'll be interesting to see how he fares.
Participants:
Viswanathan Anand
Vladimir Kramnik
Levon Aronian
Boris Gelfand
Maxime Vachier-Lagrave
Laurent Fressinet
Michael Adams
Nikita Vitiugov
Ding Liren