At least going into that draft, Biggs was thought to be something similar to Tom Wilson (as others mentioned, but he was drafted a year later in 2012) and Zack Kassian (13th overall in 2009). If anything Biggs fell a little bit in the draft as perhaps other teams didn't want to use their pick on somebody whose upside might have been a good 3rd line power winger. The perhaps old school thought was that Biggs opened up the ice for smaller teammates like Rocco Grimaldi and Reid Boucher to operate.
Brian Burke actually traded up to get Biggs, those picks became Gibson and Rakell lol.
As easy/fun as it is to pile on Burke, the rest of the table convinced him to trade up for Biggs. Burke's pet pick that year was Stuart Percy, who he proudly declared that he had personally scouted which was funny since Percy just happened to play for the OHL club closest to Toronto.
In the moment, Toronto trading up didn't feel like anything unusual. Allegedly Detroit was prepared to take Biggs at #24 but traded down after Toronto took him.
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As others mentioned, Paradis was an off the board selection. Sometimes we place unfair expectations out of the guy taken 27th versus the guy taken 34th.