I would definitely like to see the Invader in DCS, particularly the B-26K Counter-Invader version.
Been a frequent volunteer at the Vintage Flying Museum in Fort Worth, Texas, where the only airworthy B-26K makes her home.
From your poll:
Aermacchi MB-326
Convair F-102 Delta Dagger
Lockheed F-104 Starfighter
Lockheed T-33 Shooting Star
North American AT-6 Texan
Republic F-84F Thunderstreak
Republic F-105 Thunderchief
SIAI-Marchetti SF.260
In addition, I could go for:
Aero L-159 ALCA
Antonov An-2 "Colt"
Bell AH-1 Cobra (Vietnam-era)
Boeing B-17G Flying Fortress
Dassault Mirage III
Douglas A-26B/B-26K Invader
English Electric Canberra B.2
Fouga CM.170 Magister
Hawker Hunter
Hawker Sea Fury
Mitsubishi A6M "Zeke"
I did some time with the Mitchell, as well. Reason I chose the Invader over the Mitchell is that the Invader usually has a crew of 3 or 4 (dependent upon the mission), whereas the Mitchell has a crew of 5 or 6 (also dependent upon the mission). Would probably make it easier to code.
"Other than my home state, I don't know of any other location in the world where 2 A-26's (specifically a 'B' and a 'K' as you mentioned) are maintained/hangared within a short drive of each other"
I was in Texas, at the time. Kind of narrows it down.
With the upcoming Mosquito module from ED, I was wondering if anyone else was interested in seeing the Douglas A-26 Invader series of bomber come to DCS. As someone who worked as a volunteer at a flying museum that currently operates an A-26B Invader and a B-26K Counter Invader, I would personally love to see this light bomber in DCS.