^^If he's powershielding jab, it means you're being too obvious with your jab attempts. You probably should have mixed it up more. If Falco's jab is frame 2, it doesn't mean he's reacting. Instead, you could have literally chosen grab as an option (frame 6), and given that shield extends the hurtbubble, you would have easily grabbed him. ^^
The skill required for a Samus to even the playing field is high. And even then, her weakness of landing the kill move is accentuated against camp play.
Reflector is good and all, but usually unnecessary. Sounds more situational and theorycraft occasionally put into practice IMO. Just stick to powershielding. The reason I say this is because reflector leaves an opening for z-air and other follow-ups depending on the distance.
Falco's spot dodge is unbelievably hard to deal with Samus' tools. Emphasis on unbelievably. I know how to deal with it, but the execution required is absurd. Pull that spot dodge out from time to time and you'll be surprised with what you can get away with.
Lasers and phantasm. Just stick to jab combo. Shield early if SDI occurs. Powershield projectiles, space yourself from z-air (and powershield->f-tilt, it's longer than you think), phantasm and repeat. Mix it up with dash attack. Phantasm, as a juggler, will naturally provide a kill set-up for b-air.
Off-stage, I shouldn't have to tell you what to do if you're semi-decent with Falco.
Overall I'd put it at +3 in Falco's favor. It's not a MU I prefer obviously. I'll **** most of you with Sheik though, f-tilt lock or not.