Peace, I didn’t mean to say that the Control Room listen is worse in any way! I said “There’s also a good and dead-simple workaround (…)”.
The thing about the busses is to let people know that there’s a different behaviour of the standard solo buttons on FX channels depending on whether the dry channel’s output is assigned to master or a group/bus. I think that’s not irrelevant. It also makes a difference, because the regular “solo” key command can still be used if one wants to. 
Anyways, since you seem to have some experience with control room listen, can you maybe help me with a problem i described in this topic?: Metering & gain staging with Control Room Pre-Fader listen - Cubase - Steinberg Forums
I want to solo/listen to a channel pre fader but post inserts, so i can do all my gain staging with a single VU meter on the master, even though the channel fader might already be set to something different then 0 dB. But when i listen to a channel with pre fader in CR engaged, it is actually pre inserts and pre pre-section, so it only allows me to listen to the raw input without any inserts or gain adjustments 