wharfedale 9.6 vs ma rs 6

kindly advice me to choose fr stands for onkyo sr 606
70%musics . 20 * 18 feet room i have shortlisted these two

For the money, both won't dissapoint you for music as well as HT, RS6 being quite expensive though. But, my money is on RS6, coz you can't go wrong with a much refined speaker like RS6 (IMO).
The wharfs are the typical laid back british sound. The RS6 is more forward sounding and probably more accurate as well. However at that price I'd look at the Usher X-718 bookshelves. Significantly better than both of these by a very large margin.
For excellent sound that won't break the bank, the 5 Star Award Winning Wharfedale Diamond 12.1 Bookshelf Speakers is the one to consider!