Two scenarios:

Stakepool owner #1 pledges 10k, stakes 10k and total stake from others is 100k = 110k staked total

Stakepool owner #2 pledges 100k, stakes 10k and total stake from others is 100k = 110k staked total

Do they both have the same odds to generate a block, as long as the pledge amount is maintained -or- does Stakepool owner #2 have better odds because more is pledged?

---and can a stakepool owner pledge far more than they can personally stake knowing the pledge will be maintained by others?