I LOVE LOVE LOVE my NSH, ASB/Arab crosses. They are some of the most people oriented horses I've ever had. The NSH was originally bred to be an English (Saddleseat) horse, but many of them are now being used in all disciplines.
I have LA Peppermint Patti, Atomic Deluxe X KZ Jubilee, she's 3/4 Saddlebred, 1/4 Arabian and a gorgeous Tobiano Pinto as well. She is NOT a saddleseat horse, nor is it looking like her son by RA Hot Every Night will be a Saddleseat horse. Patti is a Res. Champ. Pinto Congress Mare, her sire is a World Champ Pinto Stallion, RA Hot Every Night is World Champ Pinto and 5 gaited champ.
I used to own TR Supergirl, HF Mister Chips++ (Canadian Champion Park Horse) X Calloways Blue Norther Daughter (one of the top siring ASB Park horses in history) and Gigi never took an English step in her life.
None of these horses is HOT, a NUTCASE or a GAZELLE with an inverted neck. Actually, Gigi has one of the most gorgeous necks I've ever seen and has a super typey (Arabian) head.
Above's a link to a rather poor video of Gigi, she's so lazy I could barely get her to get excited enough to flip her tail up over her back for the video. She's now got a great home in NM and going to be used for foxhunting.
What all 3 horses have in common besides registry is the common desire to be loved, crave attention, love to please and have a wonderful work ethic. Oh yeah, and they're flashy besides.