Swisscom
This one of big telco's policy was taken as an another example of pure analytical rules about what good passwords should be look like.
See "Password rules" section on this page for complete description of policy.
Passwords from tops of Rockyou leak allowed by policy:
11112 password1
5187 princess1
4497 blink182
3998 iloveyou2
3823 babygirl1
3700 iloveyou1
2808 jordan23
2664 myspace1
2654 michael1
2398 anthony1
Visit link to see policy implementation used.