8590857781372366342Minecraft 1.7.2 - 1.7.9 Seed
In this seed if you open a nether portal from spawn you will easily find a nether fortress,
Stronghold 601,
Seed:
Seed Code: 8590857781372366342
Spawn points
X: 141 / Y: 62 / Z: 249
Locations

X: 601 / Y: 70 / Z: 46
From here look down in the ravine to find the stronghold
Birch Forest M Biome not to far from spawn
x -100 , z 481
Found an abandoned mine right at spawn as well. This seed just keeps getting better and better.
If you go to a cave at [x228, z218] you can follow it down to a huge underground ravine that takes you to the mine if you just keep looking for caves heading down.
or dig straight down at [x186, z146] and you will land in it.
Thanks! I'm down in the stronghold now, I played on a different seed forever and never found one, this one is cool. :)