In terms of security/vulnerabilities, I'm not sure it matters if you intend to use Schlage for the sole-purpose of being more resistant to getting picked or drilled out; especially in the case that you have windows that can be smashed in hahaha.
A door is a lot preferable to force than a window in my experience. Usually it just takes one solid kick to knock all the bolts out of a doorframe. Maybe 2-3 if there's a heavy deadbolt. Windows break much more noisily, and then you run the risk of cutting yourself while trying to fit through the frame. Either way though, the type of knob you've got on a door doesn't matter in the slightest.
The best security for doors is definitely replacing the hinge and strike plate screws with 3" long versions - it makes your door much harder to kick in. Barring that, if someone has the will to enter your house....they're going to do it regardless of the brand of deadbolt you're rocking.
Kwikset is indeed regarded as inferior for deadbolts because it's easier to dismantle and/or pick than Schlage, but if someone's going to spend the time to try and break into your front door stealthily, they probably have the tools and knowhow to neutralize either type of lock. I have to imagine 99% of would-be criminals aren't looking at your lock (which they can usually only tell the brand if they're right next to it) and thinking "aw, shucks, it's a Schlage...onto the next house!".
Plus the reality is that for most of us here on the forum, it's somewhere between silly and completely privileged to think that anyone's going to break into the house in the first place.
ETA - the biggest reason a new homeowner should rekey in the first place is because you don't necessarily know who previous owners gave keys to.