In reply to ti.williams: I have a springer, and hes stupidly fit and hardy, have done 10 hour plus days and hell keep going playing fetch all the way!
Only issue with a work bred dog, they want to work?
Not many 'work' bred will happily walk by your side, all the time, they want to do stuff! Which normally means causing problems for some other animal . . .
A springer, will try and spring stuff! Birds, rabbits, etc
A collie has a herding instinct, for sheep, people, other dogs!
Akita's are a hunting dog, for holding big game but also good for guarding, meaning they can over guard!
The key i suppose is to think what the dog will 'naturally' try and do, and do what you can to help/prevent this, so for a springer socialise to birds etc, give them something else to hunt?
Collies, get them use to sheep, early on, not in the 'let it get battered by a ewe way, although it has its uses!
Akita's - socialise them, well
Ive found collies are more efficient, they don't charge around like mad dogs, although will when they/you want.
A springer how ever has a suitable name, they will run around like mad nobs everywhere! which is great fun, but not safe if there is a big drop somewhere, so they do require directional/stop training to ensure they dont kill themselves, which they are all detained to do!
Good luck!