f18e RCS may be 0.1 meter sq but again this is frontal RCS
and RCS from sides is more than this
what if f18e gets 6 amraams which itself increase the RCS of aircraft by 10 folds and its frontal RCS becomes 1 meter sq and same RCS irbis e detects over 200km
and for EW varient of f18e one can also mount 6-8 elta8222 jammers on su30mki
or 4 on mig35 +2*kh31+2*r73
and for f18e carrying wide range of air to ground array then the mig35 can also be equipped with those kh31,59,35 stand off PGM, kab500/1500 or for that matter israeli PGMs
and yes 6 ton paylaod is more than enough to carry various configurations of these PGMs
6* 500kg PGM +2 WVR or fuel tank is general configuration for strike and mig35 is fully capable of carrying this
and for fully configured apg79 one must know that IAF not going to induct any MRCA before 2014 and by then all other contenders will have fully configured aesa radars
A fully loaded Mig-35 would have an even higher RCS than the F-18 from the side as well. With the increased RCS the APG-79 would still detect the Mig-35 before its detected. Also the Mig-35 isn't equipped with the IRBIS E its using the ZHUK-AE which is less powerful than the IRBIS E. While the Mig-35 does have a decent amount of A2G weapons when is the last time they were used? US A2G weapons have been used extensively in Iraq and Afghanistan. Not saying there better they are just battle proven and effective. The SH can carry twice the weight in A2G configuration. That's a huge advantage, you would have to send two Migs to do the job of one SH.
In 2014 the Apg-79 will have been operational for almost 9 years compared to the 3-4 for the rafales AESA the Mig's AESA isn't even in production, and would only start production with the India order so there is no way you can claim it to be fully operational. At the end of the day the SH is a much better package for India than the Mig-35. But Personally I still believe that the Typhoon is the best possible choice India could make once the A2G integration has been completed. It will surprise people when the A2G weapons trials begin.