A minority think Alonso is slow, and given Lewis is doing so well at matching his ability, could it be that the McLaren is super-fast with mediocre drivers OR McLaren is mediocre with superb drivers. If the former is true, are Alonso and Hamilton worth it, and could McLaren use the likes of someone like Raikkonen to properly secure the title? Although I suspect the latter is true.
Very provocative! To take the bait for the sake of killing a few moments. There can be little doubt that Alonso is a great driver. Alonso is not yet getting 10/10ths out of the car. There is more to come. There should be little doubt that LH is an emerging star and is still learning life in the majors. He will develop further as the season progresses. For the record the f2007 is the super-fast car followed by the MP-22. The MP-22 is hardly mediocre! That Ferrari has not won every race this season so far is due to reliability, poor luck and driver error. (the latter commited by both drivers) Take Malaysia for an example, driver error by both drivers cost Ferrari. We all know Michael would have closed the door on Alonso and that would have been that!

I do like that LH did exactly that at Monaco showing that he knows whats what.

I think Raikkonen is probably the fastest driver of the current crop but the difference is small. To underestimate Alonso's skill/talent is pointless. Double world champions do not get there without serious ability and he got there fighting Shuey!

But F1 championships are about the 'package' of driver/car/team/luck. You need all of it to work to be successful.
FWIW I rank the drivers as follows: Kimi, Alonso, being very close. Followed by Massa, Heidfeld, Hamilton also very close and will change as Hamilton gathers some experience.
'For many people life is something that flits by while you are busy doing something else.' Alan Henry 06/07 F1-racing - The Rumble Script.
Or as I like to say 'life eats up a lot of bandwidth!'