Hey guys. As a guitar cross over player I've never really cared for effects on my bass. Just always used my amp, nothing else. Best stand alone pedals? Your favorite multi unit. What do you like and dislike about each. Thanks guys.
I'm a guitar player too, and I have a different take on the single vs multi-effect scenario. I started with single pedals, but have gradually gotten more into multi-effects almost exclusively.
Though dedicated individual effect pedals do generally sound better, they have a lot of drawbacks. First is the cost--you can spend a fortune on them. Second is the potential for cables going bad, noise from one pedal, etc--that can be hard to pinpoint. And finally the programmability of a good multi can't be beat....the tap dance routine that you do changing several effects during a song is not fun. And you can save a whole set list in order.
I second the suggestion of the Zoom pedals. Either the B3, the Ms60b, or even the B1on would be good to try out. Find out what you're into, then decide what route to go.
When I gig electric guitar, I use a Boss Me70 unit exclusively. It does everything that I need, and is easy to tweak on the fly. I've occasionally thought about "upgrading" to a more expensive multi-effect unit, but I just don't find any sound that I can't get close enough to. After gigging with the Me70, I will never go the single pedal route again.
On bass, I do have a pedalboard that has a Zoom B2 with built in expression pedal, a Zoom Ms60b (which was the last one acquired), and a VT bass pedal. I usually only use the B2 for the volume pedal or xlr out. The VT is great, so it is staying. But if I only had one pedal to use on bass, it would be the ms60b. It can get me close to any sound that I need.
Now, if I didn't play live gigs, I would probably recommend single pedals, once you know exactly what sound you are looking for. Because recording is a different game than playing live.