Living in Minnesota I fish for Northern Pike a lot...but my biggest fish have come on some strange baits!
My largest Pike the last couple years (38") came on a 1.75 Small Fry ...while crappie fishing!

I've also caught a lot of nice Pike on 6" Carrots

The most Pike have come on the 4.5" Swim Shad, especially rigged on a big spinner bait or chatter blade...and they really seem to like my tubes!

The bait that I would pick if it were going after big fish would be the 7" Wutz-it. For some strange reason I don't have that mold, but I have caught some nice fish on samples and baits I rec'd in swaps. It just seems like the logical Northern Pike bait!
But....I would bet the farm (and I've made a bunch of them this winter!) on the 3.75" DD Gill. It looks like a bluegill or shad and Pike love both. Nothing drives Northern Pike more crazy than an easy meal on an injured fish.
As soon as we get rid of the ice on the backwaters (we still have 1 -2 feet left!) I'll let you know how the DD Gill does.