I go for practice, the usual. Fairly low distortion and noise. Straight frequency response and sufficiently large effect on the amplifier (headroom and then more headroom). Plus so the amp can handle low Ohm.
Feel free to use this calculator. Add sensitivity to the speaker and then tell which effect you have chosen and why. Weigh in that you want some headroom. http://www.mh-audio.nl/Calculators/REAP.html You can select music from this list. Or something else, but in that case tell us how you...
audiosciencereview.com
In terms of dispersion. Hm, sensible on axes, otherwise it's pretty pointless to EQa. Much like most I think. Is there a possibility that EQa so more focus on the level of distortion. But I mostly buy old speakers. Tests them for a few months, more or less lets the subconscious guide me. The ones I play with the most I keep. I sell the others.
Second system, more prio on the feeling, vintage feeling. Vintage reciver. The sound quality itself is not the highest priority there. Even uses FM radio in the bedroom from time to time.
I should fix the acoustics in the listening room, but I'm a little too lazy. Large carpets and furniture, I think you go a long way and I have. It is worse with roof reflectors.
But if you enter shit into the Hifi system, shit comes out so I try to find sensible recordings.