I hunt a Duck Invader 13. I think in this day and age, it's the only 2 person boat that's low profile and hides that you'll be able to find. Here is a quick summary:
Duck Invader 13: True 2 person boat. I have hunted one with 2 people and a very big lab. It was tight, but it works. It's a more modified hull than a deep-vee. It's a much lower profile boat than the Roy 12 high box. A 25hp will push it along just fine. It's plenty fast. Very low draw for water. Handles rougher seas decently. The main difference between the Roy and the DI is the profile. The DI13 you sit very low. We use turkey chairs and you are basically sitting with your legs stretched out, knees slightly bent. The *OLD* Duck Boss 13 is a very different rig. Rich when he started Duck Invader walked away from the old hull with the narrow bow. Hunting someone out of the bow was really tight. The Duck Invader 13 has a uniform cockpit opening the whole length. It's gone through another owner change and is now rebranded as the *NEW* Duck Boss 13. With 2 guys and a 25hp you can probably get it off the mud as long as the water isn't too far.
*OLD* Duck Boss 13 = A very different boat, narrow bow. Kind of tight.
Duck Invader 13 and *NEW* Duck Boss 13 = Basically the same boat.
Roy 12 High: Also a true 2 person boat. For being 12', they make incredible use of space. I've seen people hunt them with 2 guys and a dog. They are more of a deeper-vee than the DI13. Less on the modified side. I know guys will carry a small section of railroad tie to put under the hull when it's on the mud or sand because it tends to teeter with the more deep-vee design. Higher profile than the DI13 but still hide very well. Guys seem to sit on a cut off milk crate or a higher blind chair. They are very, very light and folks have sometimes gotten themselves into trouble with open water crossings. They scream across the water with a 25hp. Supposedly they can be hauled off the mud decently well too. Very hard to find and people usually want quite a bit for them. It's a legendary boat at this point. When one goes for sale, it's usually sold in an hour or two. A lot are already spoken for before they even are listed for sale. There are rumors that Roy's son is going to build them again, but no one has heard or seen much in that regard. I know Roy still takes tons of prides in his rigs and has almost like an unspoken lifetime warranty on his rigs.
There is also the Roy 14 which is one of the rarest duck boats in existence. If you stumble upon one of them, that's worth buying in the blink of an eye. They will probably want quite a bit of money for it. They are a big heavier and most guys will run a 40-50hp on them.
Both are great boats. Neither are perfect. If you took the profile of the Roy 12 High, combined it with the hull and layout of the DI13, you'd have the perfect boat.
My only gripe with the DI13 is as mentioned, it's almost a bit too low. Rich could have popped with gunnels up a bit, made the flaps longer and more vertical, and it would have been perfect.
