1. Golovkin 2. Jacobs 3. BJS (I don't rate him as highly as many do, but he's unbeaten and has wins over CEJ and Lee, albeit close ones, and also Spike and Nick Blackwell so not a bad list) 4. Lemieux 5... could perm any one of three or four. Would probably go with Quillin, but he hasn't fought for a year, which is generally considered the long stop for dropping out of the rankings by the publications and sanctioning bodies, unless you're the WBO who still rank dead fighters. As commented earlier, the likelihood is also that PQ will step up in weight. CRJ is another contender but is also moving up, whilst Lee hasn't fought in 12 months either. That leaves possible retreads like Ndam, Monroe or Stevens, or talented but unproven guys like Derevyanchenko. I don't want to hear any of this Canelo linear title nonsense, taking on a blown up junior middleweight in a catchweight matchup one pound over the 154 limit doesn't prove you can hang with proper middleweights. I'll rate Canelo when he fights a proper middleweight and we get a gage as to where he's at in that weight class.
1.GGG 2.Jacobs 3.Canelo(assuming he is now a 160lbs'er) 4.Saunders 5.Lemiuex? Its not a particularly deep division