Slim, 3.41 what cfw to choose. Must support skylanders Giants original bd-game

Greetings.

Got a slim running 3.41 for ages but never got around to installing cfw. The kids got skylanders Giants so I guess I must choose to either update to latest ofw or install cfw - would rather do the latter. What cfw to choose? Is it be possible to run original bd-games on cfw?

Thanks