I would disagree completely here seeing a huge difference between practicing (possible blind) and "most suitable for self defence". I may sound like a broken record (ie. the kid's thread) but I would go for Judo here too. Aikido needs incredible hand eye coordination whereas judo basically requires getting a good grip.
Not sure I agree with you there, once an attacker has grabbed you, Aikido should give you the capacity to defend yourself accordingly. You may well give them more injuries because you cannot identify what is in your local surroundings and your attacker could be impaled on a fence post or similar as a result.
The other question that I would raise is would it be appropriate to expect that an Aikidoka could execute their techniques with the same capacity with a blindfold as opposed to to relying on sight in the dojo?