IF this trade was to go through (and I'm very skeptical,) I think we would match up very well with what could be our biggest rival, Phoenix. Just compare our potential big 3 with their potential big 3: (Assuming Amare is back and healthy)
Nash and Bibby are both elite point guards, though Nash gets the nod here. His superior passing and the 'Steve Nash Effect' are on a whole different level than Bibby's abilities as an initiator, though this might be less important with a decent passing SF/PF combo of Garnett and Artest. Bibby is the better scorer, and is the more established clutch performer. Advantage: Phoenix, slightly
Marion and Artest both play good D, but this is Artests specialty. If he had played the full season, he could very easily have won DPOY, while Marion played out of position at PF and scored/rebounded extremely well for his size. (As per the usual) Artest is fully capable of scoring as well as Marion, but would likely not have to on this Kings team. Advantage: Tie
Garnett is the big the ticket, a former MVP who hasn't declined at all since that season. Surround him with quality players such as Bibby and Artest, and the league better watch out. Amare has also been an MVP candidate, and is nearly unstoppable when he gets the ball in the post, but doesn't excel in any other category. His passing is sub par, his rebounding is only average, although he does accumulate just over 1.5 blocks per game. Garnett beats Amare in rebounding, passing, blocks, steals, and is only a slightly inferior scorer. Advantage: Sacramento
The 'x-factor' for Phoenix is Diaw, and while is a very special talent, he's been played out of position at C, where in 35.3 mins per game, he's averaged 13.3 ppg, 6.9 rpg, and 6.2 apg. Sacramento's 'x-factor' is the up-and-coming Kevin Martin, who would be thrust into the starting role at shooting guard. As a reserve, playing 26.6 mpg, he averaged 10.8 ppg, 3.6 rpg, and 1.3 apg. He also helps Sacramento with their outside shooting and FT%. Advantage: Time will tell