A frogfoot would not fight the ac-130, it would target ground troops, while the su-27 and su-35 would fight the ac-130. an ac-130 literally stands no chance against a su-27 or even russias most antique fighter jets, hence f-16s would escort them or another comparible aor superiority fighter if they expected air hostility. The su-27 is a dead match for the f-16 and fa-18 fighters, while the su-35 actually has an advantage in a dogfight over the f-22 americas most advanced fighter, but at the same time has a disadvantage at longer ranges over the f-22, the superior fighter between the f-22 and the su-35 would depend on whether the f-22 could take out the other jet before it came to a dogfight.
That is not counting their s-300 and s-400 systems which are more advanced than american ainti aircraft systems, atleast the 400 is,their kh-15s missile, their still massive supply of tanks etc. You just seem to be full of hubris if you think they will be a cakewalk, They spent decades developing weapons and strategies to counter nato and american forces, and those did not just fly out the window because the soviet union fell, and in recent years russia has been modernizing their fleets rapidly.