Almost every good type 1 deck has a defense against turn 1/2 brokenness...Force of will, duress, tormod's crypt, leyline of the void and even merchant scroll helps keeping the broken decks in check.
Allow me to illustrate:
GAT - Duress, Force of will, merchant scroll for force and usually some combination of misdirection, mana drain and red elemental blast to back that up!
Flash - Force of will, and sometimes duress - Although the main defense against fast decks is to run even faster

Bomberman - Force of will is pretty much the only defense they have in the early turns, sometimes with a few misdirections, and if the game goes longer they have drain and aven mindcensor.
Storm combo - Usually 6-8 pitch counters (FoW, MisD) or just 4 duress...and obviously the ability to race as they are among the fastest decks in vintage (Beaten only by Flash and potentially Belcher)
Fish - Force of will, Daze, stifle and annoying creatures and artifacts like meddling mage, null and chalice of the void.
Stax - Stax got so many turn 1 plays that stalls the game until they can either lock you out, or win by some other means (Like Metalworker/Staff or just karn and 20 power worth of artifacts)
Control Slaver - Force of will and mana drain are the staple pieces of disruption, although Red elemental blast, Duress, Misdirection and various other disruptive cards have been seen from time to time.
Ichorid - Runs Leyline of the void, chalice and cabal therapy to survive the early turns.
That should give you a basic idea of the necessary defense.