Interface talk: UMC1820 vs Motu M4 + patch bay

I have a few synths at the moment, but only a 2 in / 2 out UA interface. I’d like to get everything hooked up for easy connectivity and routing flexibility. I’m planning on getting some outboard pres, eqs, and compressors in the near future as well that I’ll either use during tracking or mixing. So I would definitely need 4+ outs to do this. I only ever record one synth at a time, so I’m not sure I would need more than 4 ins.

As far as quality and flexibility, would you recommend either of these two setups? Any other recommendations?