There is no single winning battle deplyment, you really have to be flexible. In general the deplyment mentioner (archers, infantry, cav on flanks) is good for most battles, especially when you are superiour (in numbers and/or quality).

However, if you are facing superiour enemy I recommend you deploy far from enemy deployment zone. Also I would deploy in a rather loose formation (more space between units). Why? To give you time to adapt to enemy deployment. In a close battle, you have to use each unit to its full potential - use it vs. what it was designed to kill:
Spears vs. cavalry, swords vs. spears, cavalry vs. swords. If you see enemy formation - adapt.

Personal example was a siege. I was sieged by HRE stack full of Dismounted Feudal Knights (DFK) and catapults. By coincidence, most of my garrison was cavalry (Mailed Knights and Feudal Knights). I have exited the city via 'side' exits, and charged DFK with my cav. Few repeated charges have wiped out many enemy units, silenced the artilery, and allowed my militia infantry to rout the remains. Most of cav was reducec to 5-10 men strong (out of 80-70) but my 8 (5 cav) units killed entire stack. That would not happen if I stayed in city.