I think that EVERYONE is right - it is just a matter of personal opinion and taste.
That being said - I use a manual choke on start up in the morning. After the first two minutes I do not use the choke for the rest of the day - so why have a dedicated servo and channel assigned??
As for the Kill Switch - When I want to Stop the engine - I want to 'KEEP IT SIMPLE'
A simple 'On - OFF' switch works for me. That way there is less chance of error in a 'Heated' moment.
When All is said and done - as alway it is a personal choice - and if it works for you - Go For It!
Happy Landings!