My first concern is the fact that weather is becoming a factor used to split the Smogon Community for several reasons.
1. 33.3% want NO weather, 33.3% want ALL weather, and the rest want individual groups of weather, abilities, or pokemon banned. I for one drift towards #1. I personally know people in real life who abandoned Smogon because of things like this. However, the idea of Stormy OU and Clear skys OU sounds like a good idea. For those of you who argue about too many tiers, we can obviously tell that 4 auto weathers would be TOO powerful in LC and quite frankly UU. Now, I for one can stand up for Sand. The ONLY new factors are Terakion, Doryuuzu, and Randorusu. Terakion, in my eyes, seems like another case of "New Gen Ubers yet to be dealt with", while Randorusu seems like a replica of Garchomp. Hail has barely gained any new abusers and is still highly disadvantageous. Sun is nice because the combination of its abusers and sub-par abusers (for the most part, I know there are some good ones out there), balance out nicely. Not too strong, but manageable.
Rain...well, I feel I have no say on that. Wouldn't want to start an arguement.
2.Those who oppose weather oppose diversity, a wide range of playing styles (Sand Stall, Offensive Sand, Balanced Sand, Offensive rain {again...a bit of a problem}, Rain Stall, Offensive Sun, and Hail Stall). Was the purpose of all this bannishment and downsising not to "create as diverse and enjoyable a metagame within our best interests to the population a possible"? I know I, many of my online supporters, and many of my real-life friends will be devastated to see these styles go.
I'll bring more when I can.