Barts are not overly coloured but defo have a more vintage vibe to them compared to MEC or EMG.
The Streamer is much less flexible, great growly tone but I would not use it on a singer songwriter dep for instance. The Elrick can pretty much do it all, from almost passive sounding old school funk to rock. That plus the playability impresses me most.
You know I was raving to yoy about the Lulls I used to own, for me the Elrick is on par at least.