I have to agree about the summary list not being resizeable! Same with the lists in the Reliability and Performance Monitor. Everything should be resizable!
As for splitting up the logs, I consider that a feature and with the 'custom views' you can create a view that shows exactly what your want.
As for clearing the logs, I don't mind at all. I leave them set to overwrite old events am done with it. You get the same functionality by just filtering by date as the output is the same as if you hand cleared the log at the date/time your specify for your