Have you ever composed or used a good Sun team? I got to 1st page in one day using a Sun team. And guess how many Rain teams I had to trample to get there.I really question why Sun is being brought up at all in these proceedings. I don't find any of the abusers (or Ninetales for that matter) difficult to deal with. With Venusaur, its coverage can only be so good, so it can always be walled, and Ninetales is even crappier than Toed defensively. I don't see why sun would ever need to be banned, and as a counter to Drizzle it is, in a word, abysmal.
People are slowly beginning to realize how versatile Sun teams can be. Grass types put a lot of pressure on Rain teams and Blaziken cleans up pretty hard. Only problem is Sand, which is sometimes a little trickier because it has two inducers, both of which can beat Ninetales directly if her weather is not up. But I do remember sweeping this one guy's team with Ninetales after Ttar and Hippowdon died. And it wasn't even offensive, lol.
If you want to make a good Sun team work, don't use an offensive LO Ninetales and have a good spinner around. Both will help keep you in the fight longer. I usually only pack one Chlorophyll sweeper, but if you're really confident, you can double up. Grass types can only get you so far, you know.