Well, I guess the first question is wether you play 'all comers' lists at your store, or do you tailor your list for your opponent. Where I play at, it is considered a scocial pho-pa (spelling?) to tailor a list for a specific opponent, so I try to build lists for all situations. The best configuration that works all around for me is the good old Fireknife, plasma, missile pod, multi-tracker. In fact, I would say that this is the best configuration to take for range/AP purposes unless you are seriously threatened by lots of deep-striking termies at your store. If what you're looking for is close in defense against well armored troops (3+ or better), go with plasma, fusion, multi-tracker. A squad of three Crisis suits bouncing around can throw down nine (9) AP one or two shots a turn at rapid-fire range. Admittedly, at balistic skill 3, you will only kill four marines or so, but it usually has such potential threat to your opponent that he will think twice before deepstricking right next to you. The Fireknife may not have quite as many low AP shots, but against an opponent other than marines, each suit is getting four shots that AP most targets at rapid fire range. And at ranges outside of that, it get three shots where as the plasma / fusion combo is reduced to one shot.