''The J-10B (also called the FC-20) is TOTALLY DIFFERENT from the usual J-10A you see in the PLAAF. The J-10B is a SUPER ADVANCED near-5th-generation fighter that stands on a WHOLE NEW GENERATION than the J-10A.
The J-10B / FC-20 is said to be superior to and more advanced than the MiG-35 and the latest Eurofighter Typhoon versions.''
....In response to a specific request from Pakistan, CAC and its affiliated 611 Institute are now developing tandem-seat deep interdictor variant of the J-10, which will be equipped with a laser target acquisition/designation pod, laser-/GPS-guided PGMs, as well as PL-9C within-visual-range and PL-12 beyond-visual-range air combat missiles built by the Luoyang Opto-Electro Technology Development Centre. Design of this variant is derived from the J-10B operational conversion trainer that made its maiden flight on December 26, 2003. The J-10B features a stretched forward fuselage and a single-piece bubble canopy. Its dorsal spine has been enlarged to accommodate those avionics displaced by the rear cockpit. To date, two J-10B prototypes have been built. The Pakistan Air Force (PAF) has to date ordered 36 J-10As and four J-10Bs, and wants to induct up to 40 J-10B deep interdictors—to be called FC-20—into service by 2015. The PAF is widely expected to equip its FC-20s with the SELEX Sensors and Airborne Systems-built X-band Vixen 500E airborne active phased-array fire-control radar....
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but then again we wont know untill this product hits the international markets
Sorry if I sound too harsh, but that's total crap. And since "we don't know until this product hits the market", perhaps we should stop misleading people till then. There is no evidence whatsoever that a J10B will be superior to the latest Typhoon. Don't be so speculative.