I really have doubts over treyarch over their games developed especially for PC version.
Their last game ported was spiderman in 2000 (that was 8 YEARS AGO).

Plus the call of duty game created was purely for consoles.
Call of duty 3 was developed by them has garnered average reviews in consoles.
Only this year they start porting games to PC.

In call of duty franchise, i prefer Infinity Ward since every games created was game of the year.
When they developed COD 1 it was deemed superior than the medal of honor series.
COD 2 was in improvement on graphics & gameplay.
When they saw what happen to COD 3 they develop COD 4 in modern warfare (great innovation here)

I am more looking forward to another treyarch game called Quantum of Solace than COD 5.