Neither look good. I would be very concerned.
How much do you want Biden to be leading by? 10? Would you say that it doesn't look good for Trump if he were leading in PA and WI by 3 and 5 respectively?
If one thinks polls are still off in the same way as in 2016, then we have to subtract 5 points off Biden's number in WI/MI/PA and these are bad results (see Nate Cohn's page:
https://www.nytimes.com/live/2020/presidential-polls-trump-biden).
However, if one believes that the pollsters have fixed the 2016 bias by weighting by education and thus these results are generally unbiased, then they're pretty good for Biden, although PA is still within margin of error.
