I;d like to see a table / chart showing the top 10 or 20 or so xmpp things - and what features are missing from each, along with notes about the language app 1

I;d like to see a table / chart showing the top 10 or 20 or so xmpp things - and what features are missing from each, along with notes about the language app 1 2 etc is written in, and an estimate in how long it would take coders to add the amount of missing features that others have.. then we could see an estimated total, like for $xx we could get most of these apps all on the same page of features running... if that is the major hurdle - a crowdsourced money or and time to get them all modernized may make the whole ecosystem 2.0 and worthy of use? Surely it can't be that much that is needed - yet it seems that fixing just one or two is not having the same network effects of having them all speaking the 2.0 feature language.