Given their price and purpose, the PS4 (and to a lesser extent the X1) are powerful enough.
Consoles are never going to be able to rival high end PCs again, and with exception to a minority (primarily PC gamers, ironically enough) no one wants them to. Having shorter generation cycles with weaker but more accessible (and easier to work with) hardware is a much better way of doing things. It's not like the PS4 and X1 aren't producing good visuals either. Sure they can't run games at 4k, but titles like inFamous, QB and TO:1886 are all sitting in the top 5% of 1080p PC visuals. That's perfectly acceptable in my book ^^
The WiiU's hardware is a bit of a joke though :p But given that we've never had HD Nintendo titles before though, i think it's adequate.
