Urahara n ichigo- battle A
shinji n love - battle A
urahara n ichigo - battle B
Shinji n love - battle B
Shinji and Love win both fights. I'd have a hard time believing Ichigo could take on Lisa or Hiyori, so there's no way he can defeat Love. Ichigo's only attack, GT would easily be deflected by Tengumaru.
Shinji vs. Kisuke would be close, but I'd give Shinji the slight edge with the mask on. In any case, with Sakanade turned on, Ichigo would get crushed instantly by Love and then him and Shinji would gang up on Kisuke.
Urahara and Ichigo.
Urahara would beat most people who are not Aizen or Yama. pit him against Shinji, and it would be tough, but i'm sure Urahara would win. he's got plenty of power and tons of intellect. we have no idea what either of their bankais are, so going on a purely shikai standpoint, somebody like Urahara could figure out Sakanade pretty quickly just as Aizen did. Shinji's masked power and speed would be scary, though.
Ichigo is Ichigo, he could probably beat Love, especially when Love gets no bankai in this fight. if we knew Love's bankai, that would change things.
I'd lean towards shinji and love... Bankai masked ichigo seems barely at the level of a masked vizard, he'd need bankai just to keep up with the basic abilities of a captain as it is. In that sense, urahara has a very poor ally here. Love seems fairly capable to say the least. His mask is reasonably powerful and his shikai would most likely easily break through ichigo's GT and some of urahara's shikai techniques and perhaps some kido(depending on which is used). Shinji can mess up both ichigo and urahara (worst case scenario messing up urahara does around 90% of the job).
Shinji can easily compensate for Urahara's kidou with his ceros; though Shinji himself could also be good at using kidou.
Like kkck said above though, messing up Urahara would do 90% of the job. Shinji could activate sakanade then sit back and watch Love shikai + mask pummel Ichigo and Kisuke. They wouldn't even know what hit them.
Shinji does not strike me as a poor kido user. He even has a very ability oriented zampakuto rather than a melee one, I think he should actually be pretty good at it. Love on the other hand does not strike me as a great kido user. He is not necessarily bad at it, just given his abilities and personality he does not strike me as someone who´d be exceptional at kido.