cabinet choice, which would you pick?

I'm saving up money for a new amp and cabs and I'm trying to figure out what kind of cabs 2 get, I'll be getting a 1200 watt head, and the amp choices are

2x15 w/ 4x10, or an 8x10.

or 2, 2x15, 2, 4x10, possibly 2, 8x10

i'm looking for a clear but still relativley bassy sound. not trebley not ultra sub, just what it normally sounds like with eq flat on my amp and with my g&l l-2000. play alt. rock and the g&l has the aggresive tone I need, but I'm still wondering what everyone would suggest.

 

I like to be prepared. somtimes my amp is loud enough to be heard, other times, well. any way. our guitarists are both upgrading their rigs to something louader, bass is important to our sound, and I like knowing that I won't have to push the envolope.

id would also like to know why you suggest these cabs. because I do not think I would get 2 2x15's simply because of the chance that clarity will be an issue.

thnx. sorry I'm new to choosing cabs, and I can't really test them out because I'll have to order them through our sponsor. I have played through the 2x10 combo version which was actually very nice. (one bass amp and 3 guitar amps for the guitarist to run through)

 

I already know the brand of cabinets and am getting them through our sponsor. alternative rock, which could mean a variety of things, but my personal sound is slightly aggresive and can be pulled back to something a little warmer depending on the song.

I will likely rarely put the volume past 5, but I thought about this when I first got my 100 watt, and it is now being drowned out by our guitarists and exceptionally loud drummer.

I was originally going to get the 2x15 and 4x10 because those are what the company offers and it would not cost me a bundle. my main experiance is with the 1x15 in my current amp which sometimes gets boomey, and recently just doesn't sound quite as clear as I originally percieved, which is also why I am considering an 8x10, one package, may have all I need.

the company I will be using is Kustom (creedance clearwater anyone?) they our a supplier to my bands sponsor store.

 

I will be using kustom. the ones that i have played which were smaller 10-15 watt ones all sound very good.

as I have stated before I will be using Kustom, I can get the 1200 watt head and cab(s) at a much lower price than I would retail or direct order.

 

i do not think that they currently offer a 2x12, though the head can be set between 250, 400, and 600 watts for each cab. basically 500 800 an 1200 watts total.

 

no they don't have only kustom gear but the gear they have that i have more experiance with is kustom. i wil try before i buy but the store is a little farther from here than I can make most days.