better in what ways?
TheSeagoats
I never had SX bass, but I had SX guitar and got rid of it. The reason was inconsistent frets. It was impossible to set the intonation, because they don't put frets in the right spots.
My Jaguar has a great neck, the fret ends are nicely finished vs the Bronco - I've owned two of the latter, one of which had very sharp fret ends and I needed to spend some time with the fret end file. The tuners on the Jag are also better quality than the ones that come on the Bronco (one of the gears was partially stripped on the Bronco, though I replaced the tuners with full size.) The pickup on the Jag sound great compared to the slightly thin-sounding Bronco. The Bronco is a great platform for modifications - I still have mine, but it's far from stock. The Jaguar was perfectly usable right out of the box.
Having said that, I think you'd like the slim neck on the Mikro more than either Squier. Another good cheap SS to consider is the Gretsch Junior Jet, I've seen a few used examples Invalid Link Removed.