Pick 1: Kaepernick, Alex Smith, or Ryan Fitzpatrick (-5 for interceptions/fumbles, 6 pts for TDs)
Pick 3: Andre Johnson, Julian Edelman, Antonio Gates, Malcom Floyd, Stedman Bailey, Donte Moncrief, Davante Adams (-5 for fumbles, 6 pts for TDs)
QB - If you're looking for a higher ceiling, then go with Fitz. If you are going conservative, then Alex Smith - however, AZ stuffs the run and Smith may have to throw a bit more than normal (which can be bad for his pop gun arm).
Overall I'd go with Fitz and not overthink it too much, it's JAX we're talking about - their pass coverage is in the bottom 5 and a good 5 spots below the Titans who Fitz immolated. The small risk is that Arian goes hog wild and they don't need the passing game and/or the defense eviscerates them (see StL vs Oak for evidence of minimal passing necessity). However, no way I'd play Kap, he hasn't thrown for more than 1 TD for the past 6 weeks. You could say "he's due", but I'm not fucking with it in this crucial a week.
Receivers -
1)
Johnson - have to live or die by your studs and his matchup is more favorable than Hopkins (with mccray on him) this week. Yes, he does have 3 fumbles but I wouldn't worry about it.
2)
Gates - same as 1, play your studs.
3) Definitely not Floyd b/c of Gates (minimize risk in case SD passing attack does horrible) and Revis on him. Moncrief plays less than half the game + boom or bust, not a fan of that. Edelman in non-PPR is meh, he only has 2 TDs on the year and one of those was with Gronk on limited snaps. Adams - Jordy or Cobb and/or the defense and Lacy should eat so I don't think they'll go to him much, although his matchup vs McClain is tasty and he could break a few big chunks as a result. That leaves Bailey, who has a dream matchup but got less snaps last game (and the game before that) than Britt and Tavon Austin. Ugh.
With your current options, I'd go Moncrief and hope for a "boom" week - Joe Haden will be on TY Hilton and Williams on Wayne which should open up the rest of the field for Moncrief who has Buster Skine on him. Buster is burnable and Moncrief has the freak physical talents to find the end zone, despite his limited snaps - he dwarfs Buster from a physical standpoint. Not to mention that Luck has a 151 rating when throwing to him! If you don't like Moncrief's low snaps, then I'd roll with Bailey as the next highest end zone probability. Just be prepared for a bust from either one of them.