Yesterday and today I walked through the entire 5 km of the Windsor Riverfront trail to see how the Hudson Tower looked from various angles. I took dozens of photos and the four below are the most illustrative.
This photo was taken on the 9th floor of my hotel, Holiday Inn Express Windsor Waterfront:
Near the east end of the trail:
Further west:
This was taken fairly close to the Ambassador Bridge. At this distance it's hard to tell whether Hudson is taller or shorter than the RenCen: