A custom cue made by an experienced cue maker will most likely feel good to most players.
I've been playing just long enough that I've learned some of the things that I like to have present in the design of a cue.
I like a hard, layered tip. I like a small diameter ferrule and I like a conical taper with low deflection characteristics... a Z2 by Predator fills my needs for a shaft.
I like a light weight butt.... about 12.5 to 13.5 oz, so the total cue weight comes in at about 16.5 to 17.5 oz. I don't know what build characteristics are needed to obtain those weights.
I like the feel of South West and Sugartree cues so I know that I probably like a 3/8" pin and a wood to wood joint. But.... I play with my Sailor cue that has a 5/16x18 pin and I like the feel of all my Sailor cues.
I've read that purpleheart and maple provide the most feedback and solid feeling hit and I know that I like to feel the vibration of the hit in my butt hand. I think this means that I want very few, if any, inlays.
I don't care about having any decoration so my current plan is to have a butt made out of purple heart, no points, no wrap, no inlays... just purple heart and resin butt and joint collars. I have 3 z2 shafts that I use on my Sailor cues so I'll probably have the butt made to match the shaft collar diameter.
I know that I like a very small butt diameter and it's a good thing I do because the 16.5 to 17oz total weight of the cue would probably dictate a small diameter butt be used.
I don't know if I prefer points or a solid forearm.. as far as hit is concerned. I really don't have a preference as far as looks goes either. Points can be very good looking but I also like the uninterruped flow of a great looking piece of wood with lots of character/grain.
I know I prefer a nowrap handle or a stacked leather handle is ok when it's broken in.
It has taken me about 10 years and quite a bit of experimentation to find out what I like. If you have a friend who has several cues and is willing to let you use them and discover what you like that would be the best possible way for you to find your preferences.
My first cue was a nice looking, rather plain, Joss and it was ok while I discovered things one by one that I liked better.
I know I've probably confused you even more. The point I wanted to make is that there are so many things to consider that there is no way you can make a decision now that you'll be happy with a few years down the road but you can find a cue now that just feels good to you and that's where you should start. Then as time goes on and you get the opportunity to play with more cues and your touch and feel become more acute you'll discover what individual cue characteristics fit your needs.
For now.... keep it simple. Just get a cue that feels and looks good to you.
I guess my adivce is to find a cue maker in your area and go talk to him. See if he has some cues with different characterists that you can try.
This is just my opinion and I'm not knowledgeable but I think that the well known custom cue makers... the 'famous' ones.. like South West cues, or Sugartree, or Gina's, or Cognscenti's, or Tad's or Tascarellas or Shick's or whatever are all great playing and great looking cues but the key word is famous. You local cue guy that has a few years of experience probably makes a cue that looks just as good and plays just as good as those famous guys. Find him.. drive a few miles if necessary and make him your cue guy. Become a real customer and he will take care of you and value your business and the referrals you send to him. You can help to make him famous.... and then pay his famous prices
I plan to have Steve Klapp build me a cue soon.