
Originally Posted by
GRUNT
I'm also a proponent of Siege Tanks vs Hydras.
However, Marauder+Marine+Medivac IS a strong choice against Hydra+Roach. While it's true that Hydras > Marauders and Roaches > Marines, it goes the other way, too. Marauders > Roaches and Marines > Hydras.
Ultimately, I feel that the Terran army is the more cost-effective of the two. However, if the Zerg has a substantially superior economy, he will still be able to defeat you even if his units are less cost-effective, just by virtue of him throwing too many at you.