If the Patriots make it to the SB they could face NO, Philly, Vikings, Rams (or a WC team). Based on what I have seen of these teams and of the 2017 Patriots, confidence and concern are both warranted. NO, Philly, Vikings, Rams are definitely capable of beating the 2017 Patriots. The 2017 Patriots are definitely capable of beating any of those teams.
I know this may rain on the parade a little but IMHO the Patriots haven't shown a consistently highest level of complimentary football like they have in most recent years. OTOH they have shown in multiple times and if they play their best football they have a very potent complimentary team.
1. As others have mentioned, part of the equation is health. Who has their most capable and productive players remaining when the playoffs and ultimately the SB starts.
2. Our lack of playmaking capability at LB has me most concerned. If we had High and KVN? The D would compliment the O so nicely I'd be less concerned and more confident. But as of right now. KVN still not on the field, top passing offenses may be able to painfully exploit that glaring weakness.
3. if the Patriots can get KVN healthy and get a better LB set on the field(JH makes an impact would be nice), the OL plays well like the last Bills game, and the RBs are healthy? IMHO the question is now, shouldn't these other NFC teams be worried?
4. Ultimately just friggin get to the SB! Then after that just friggin find any way to win (patchwork, seat of the pants, throw out the gameplan, whatever wacky personnel groups -- for example the improbable win against Denver a few years ago). That kind of free for all is still a win (sometimes it is the most satisfying type too
).