Welcome to the club :D
We are, in the majority, biased toward the lexus.
My son had an A3 sports, loved it, but preferred my Lex, for all the bells and whistles,and reliability.
When his A3 went wrong Audi couldn't find out what the problem was, took an old fashioned owner/mechanic garage to find out what was wrong.
The choice is up to you, try a test drive in each if possible.