Preferences aside, the Prius does get better mpg, but does so by pairing an underwhelming ICE engine to an electric support team. As a result, both work in combo all the time to get that great fuel economy, except at parking speeds.
The Prius plug-in is a market failure (and being dropped), while the Fords are doing rather well. The Ford approach improves with battery size, it seems.
The Ford hybrids burn more fuel, but offer a more - electric - experience with silent running even near 120 km/h. Once you master how the C-Max operates, you can shut down the ICE at will without becoming a rolling chicane (cough-cough, Prius drivers). I could manage nearly 4km on electric alone on suburban streets with the C-Max.
I bet that under my right foot (not Jacob's heavy one), and my commute, I could probably achieve the same numbers with either a Prius V or a C-Max.