Yyyyyeah... I know Intermediate is probably too easy for me, since so far I've won twice in a season 1 Lotus, but I'll just leave it for now and turn the difficulty up with the next season (if I ever get there, considering how much/little time I have to play...). Still, I screwed up in Spain and Turkey and landed 18th twice...
Anyway - Season 1, Monaco, Lotus... and over 50 seconds ahead of Vettel (2nd). It's even more fun when you consider, that I did only a two stop strategy (in a 50% race - 39 laps): switched options to primes on lap 9 and stayed on them all the way to lap 27. I was going to do full 20 laps, but driving around with tyres at 33% was becomming slightly uncomfortable. Hell, even cold new options had more grip
So, to sum up - Intermediate is pretty easy and you can fight for the title in a Lotus or HRT, but (for me at least) the races are somewhat close (wouldn't have won in China, if the backmarkers hadn't slowed Vettel down on the last lap).
Monaco however was just insultingly easy, so as long as you don't crash into anything winning there is a piece of cake. Most circuits have a corner or two, where the AI goes weirdly slow. In Monaco the WHOLE CIRCUIT is like that 0_--