I did a large portion of my installs via equo but liked the fact that sulfur had readily available package descriptions and information and made it easy to select a group of apps to install or upgrade. When an upgrade becomes available it was nice to be able to break down the large number of packages into smaller groups and install 40 or 50 packages at a time rather than a group of up to 240 at one time. Sulfur's functions were readily available but most of Rigo's functions aren't.
This may be bit oversimplistic but installing software is a bit like taking a road trip. Rigo is like a VW Beetle - a small, simple vehicle that would be relatively easy to maintain. Sulfur is like a Cadillac - a large vehicle with many options that could take a bit more time and effort to maintain. Does smaller and simpler make the VW superior to the Cadillac? For short trips, maybe, but for long distances I'd prefer the Cadillac.
FWIW, the first three distributions I'll be trying are Bridge and BlueStar (both arch based) and Mageia.
Former Sabayon user (2005 - 2013) and current Arch user.
I liked Sabayon until it switched to Rigo and becoming the gentoo equivalent of Ubuntu. Extreme browsing? Extreme gaming? Extreme work? Extreme development? Like, totally gnarly, dude!