SWP Aizen is very slow... hard to believe anyone who has him isn't going to be facing people with Kiri / Kiki / etc.
To me SWP Aizen is a great backup partner for Kiri.
I do the following: Ultra fast Kiri > moderately fast Sexy Yoru > SWP Aizen > Main > Soph
This allows Kiri to hopefully kill off either their supporters or their dmg instantly then Sexy mostly kills the VG while T1'ing the rest of the team. Aizen then shuts things down a good bit while my main hurts everyone and soph makes it very hard to kill Aizen/Kiri.
Of course if Kiri misses Hiki/Kiri of opponent, this plan fails