Why do you care about boot time? I boot my laptop maybe 6 times per year or so, probably even less. I wouldn't care if it took even longer...
After much tweaking and struggle I couldn't get the DBus working, hence couldn't install GNOME.
i3wm as my window manager and manual configuration of everything especially the wireless connection were too spartan for me. So I switched back to Debian 8 + KDE.
OpenBSD is probably the worst when it comes to overall performance of all the BSDs, and Linux.
And I have this superstition that if I leave my laptop plugged-in to any sort of cable at night, it might get hacked while I'm sleeping.
I'll try suspending the next time I install OpenBSD.