I think from reading all of the post you can really get the sense that the horses personality needs to compliment the owners personality. Everyone has their own ideas and feelings about different breeds. A more "hyper" type person will understand a more "hyper" breed (Arabs, TBs Ect.) A more laid back person may prefer the stocks (QH, Appys, Paints)
I grew up riding and showing a Saddlebred. He was a complete nut when we got him, but we just clicked. It is amazing what a 13 yr old teenager can do for a high strung spoiled Saddlebred
I was a complete nut with that horse and there was nothing we didn't do or try! he went thru drive thru windows at McDonald's, rode in parades, took us to the lake for an afternoon of swimming, and then took me to Regions with 4H and competed and won with the "Big Guys" at bred shows. That has by far been my favorite horse.
I am now 36 and I have a 7 yr old Appy. He is a completely different personality, but so am I! I have raised him from 6 months and he is just a big lover boy. Laid back with an "OK we can do that" type personality. He has been showing since he was a yearling and won his 1st showmanship class as a 2 yr old. The judge compliments him on his behavior and said she never would have known he was so young if she had not just judged him in the 2 yr old class. The one problem I do have with him is he is too smart for his own good. He learns things quickly and just as quickly becomes bored with it and starts to look for trouble.
A friend has an Appy that is the same age as Taz (they were weaned together) and he is 1/2 TB. That horse is a true nut case! He is 17hands with a full blanket and a ton of chrome. However, I will take my 15'2 snowflaked boy any day. She was not able to show this horse until he was almost 5! She took him to shows and he was doing ariels above the ground. Her husband had to hold him down, while Taz is watching and thinking - "someone's gonna get a whippin'
If you like the Colors - then by all means - GO FOR IT! And as you said - you have plenty of time to decide. Maybe go to a few different bred shows or barns and take some lessons on the different breds. Decide if you want to ride english, western, trail ride, maybe get into showing. and as you can see - ask here - there are a ton of different opinions!!