I'm happy with my dual Apeks XTX50/DST (5th port option) that came from their sidemount kit. The 5th ports are used for the necklace and for the BCD. You can angle the first stages downwards so the hoses off the 5th ports tuck in against the BCD and the side ports angle out, which works to direct the other hoses along the side of the BP/W.
Left post has SPG and drysuit hose. Right post has long hose and there is just enough room for my Shearwater AI sender to screw in directly (there will be interference if I try to crank the turret around 360 degrees which can't happen while diving, but no issue for swiveling while deploying the long hose). The AI connection is a hard one, but is pointed downwards so it's less of a snag hazard. I've mentally debated putting the AI unit on a short hose (as at least one of my buddies does) versus the extra hose connection failure point.
On the Tek3s the hoses direct downwards and need to bend at right angles against the BP/W, especially the necklace and BCD, but keeps them out of the way. The DST setup keeps the BCD and necklace hoses higher up, but still behind the manifold and has straighter hoses, which is good enough for me.
Obviously reconfiguring the kit will allow me to do sidemount and I've also used it for DIR singles, so the flexibility of this setup seems higher.