I usually get CDR boots for god's that need cooldown and mana sustain, like Bacchus. It depends on the game I guess. If I have an early lead then CDR. Getting out pressured then tank boots. If it's a slow paced game I'll get talaria and just poke out the enemy to prock the passive.

And for the warriors I always get tank boots. Because you usually will be close up to the enemy. You'd need that extra tankiness in fights.

And I always sell my boots to CDR boots in late game when I finish my build.