I still like the look of the Guild.
However, they're still hard to find in stores up here (central Canada), and I still have yet to try one for myself.
In the meantime, based on recordings I've heard on YouTube, the plugged-in tone is similar to the Taylor, Michael Kelly Sojourn 4K, etc., and also a lot like most mid-priced full-scale ABG's. That's to say a bit twangy, like a deep acoustic guitar. I also noted that people seem to have trouble trying to avoid fretting out and clanking because of the lower string tension.
Although that sound is nice for solo bass pieces, I find it difficult to EQ for regular band use.
Meanwhile, I ran into a video demo of an Ibanez Artwood bass that competes with the Guild and the Taylor. It uses the same D'Addario nylon core strings, but it's based around a 12-fret parlor guitar.
I didn't know whether to trust the recording, but the plugged-in section suggested that it had a full, warm tone that struck me as more giggable than the others.
It turns out that the $250 version (PNB14E) isn't imported to Canada, but the $500, solid-top AVNB1E is. I found a few in my area, and ended up taking one home.
It doesn't compete with my Dingwall for tight, percussive tones on up-tempo tunes. However, it's much more than a couch toy, and has become my go-to in situations where I would reach for a regular hollow or semi-hollow electric bass.
Once again, I still don't have hands-on experience with the Guild. But for my purposes, the Ibby definitely beats the Taylor in everything but cosmetics. In fact, I was quite disappointed in the Taylor. The preamp output is weak, the low end is lacking, and the intonation is already bad by the 12th fret.
In every other way, the Ibanez kills it- better intonation (useable up to the 14th-16th fret), warmer unplugged tone, tighter string tension because of the longer 25" scale, less fretting out, more effective EQ, stronger preamp output, built-in tuner...
Here is the video that originally got me interested: