Granary was better before they added the startup gates, I never found the scout rushes a problem really and now its less fun because I can't sneak in as a pyro and burn the scouts. It removed my main tactic.
Even so, its a great map with some really nice choke points, due to its symetry i get bored of it much faster than other maps but Its good for a break from customs or the later fads (goldrush)
Well is just monotonous and boring It gives some good games occasionally but personally I haven't enjoyed a game on well since long before badlands was out. towards the release of the game I really enjoyed these maps, no one tried turtling and well, with the trains and water was much more fun than granary, its a bit too large though and the final point is a bit wasted - not like granary which has an excelent final point and is pure epic for the attackers (and not so bad for the defenders either...)
Badlands is good, I enjoy playing on it but the last capture point goes so incredibly quickly and its SO susceptable (sp?) to scouts that about one in five games is totally wasted due to some scout idiot. Its got a better layout than granary or well, it allows much more flanking. its much harder for engies, even at the finla point so turtling is bloody imposible and next to useless anyway.
Over all the three are pretty good maps, not as good as dustbowl, goldrush or gravel pit. 2fort and hydro are just terrible, [I actually like hydro but as no one else does chat is filled with moaning when its played and as a result its not that fun]
I love redstone, although I've not played it as much as the stock ones, If I had then I'm sure my opinion of it would be much the same as the stock ones, good but not the best. (no idea why everyone bashes it for being a granary clone.... it just isnt! (for one thing its reflective symetry NOT rotational like most other maps)
My own, station, is, in my opinion, not all that fun. Its not fantastic in visual and technical quality and the gameplay is mediocre at best.
I cant think of any more.. there must be some.