[Source:] Both of Chopin’s piano concerti have their merits, but
[1.] the Concerto in E minor is easier to take on:
[2.] ‘the F minor is more personal,
[3.] it is more difficult to understand the musical process; in terms of expression, this work is less brilliant.
The Concerto in E minor, obviously, is also [2.] very personal,
but the [4.] objective brilliance of this work does help.’
I unfortunately don't understand Mr Ohlsson's explanation; the bolded words appear too broad and vague to me.
For example: 1. Why is #1 easier? 2. What does it mean for #2 to be "more personal "than #1? I'm too confused by 3 and 4 even to divine their meanings.