Selecting the latest Dealmaker of the Week was not a difficult choice. After all, the week started with the announcement of what might wind up as one of the largest pharmaceutical deals ever (not to mention a deal that dwarfs any announced since early last year) - Pfizer’s $68bn (£47.7bn) takeover of rival Wyeth.

But who to select from the three firms and several lawyers involved? M&A lawyers following the deal tell us it is a tour de force for Cadwalader Wickersham & Taft partner Dennis Block, longstanding M&A counsel to Pfizer.