I've heard conflicting reports about Biden, and it doesn't seem terribly parallel. Biden pressured the Ukraine to fire a prosecutor that was known to be corrupt. Biden did not pressure the Ukraine to have the investigation of his son's company stopped. Firstly, by credible accounts it was not being investigated at the time, and secondly, firing a prosecutor does not mean the next prosecutor wouldn't pick up (or even revive) the same investigation. I guess I don't see how Biden connected aid to dropping the investigation. The facts do not support the inference.
In Trump's case, there is nothing really to disagree about, with respect to the facts. The transcript is what it is. I've not heard anyone dispute the facts in the complaint.