How about bloodwork, sandstorm, no doctors or fragyard? (not the 1v1 version - if it's possible to turn off the quad in the edge, it's possible in fragyard as well.)
Yes, they're all terrible maps as they stand, but the edge is highly unbalanced with a single control area, and lostfleet is smaller than my one-roomed apartment with only one 50 armour.
In my opinion, Lost Fleet and Edge are as of right now the two best duel maps, whereas i have to admit that i haven't yet taken a look at "No Doctors".
Dm17 and most of all fragging yard is just point and click railing and wont work in tournament play. That Fragging Yard map is so annoying because it is way too open and you can get railed like everywhere over the whole map.
It is pretty much like q3 tourney3, but even easier to hit the rails because of the physics.
in general i'd say that all maps with just one item to control suck... and lsot fleet does suck. but its better than fragging yard. there is no possible way for the player in the defensive positio n to run away from his opponent on fragging yard.. and there not nearly enough health lying aroung. over the edge in fact is atm the best 1on1 map.. there are 3 items and plenty of armor shard.. so even if one player is controlling the ya-mh room.. you can get enough armor to do plenty of damage, and there are 3 ways in there
The best 1v1 map out of the box is either sandstorm or frag yard (regular). Both of them require a mega in place of the haste / quad, but as they stand they're more balanced than the edge as it stands.