The octaver that’s based on the EBS Octabass is surprisingly decent, although it won’t be replacing my analogue octavers.
As for the filters, the best one IMO is “Autofilter” which isn’t modelled on an existing pedal (it’s a Line 6 Original) but the level of adjustability is quite impressive. There are loads of parameters to satisfy the keenest filter tweaker (I’m thinking of you @Quatschmacher)
The other day I managed to get quite a nasty gated fuzz-driven synthy filter patch with a Clawthorn overdrive going into the Autofilter and the noise gate on the input block set fairly tight. Chucked a chorus/phaser on the end and had a blast playing some dirty synth lines. Then I forgot to save the patch and lost it all