The best tune is the tune you actually buy
I bought evolve because I was excited to try new path, they had Christmas sale, and I knew they were reliable. I have no regrets, esp after learning about their header advantage as a piece of mind.
For you, headers is not a sticking point. And also right now the e90 guys are playing around with O2 sims/foulers, therefore there is less risk now about header options.
In the future, headers + foulers/O2sim mini-cat + header software is all you will need. Software for just 3 stage manifold will still work with headers, but has new dips that a header tune may address.
So for you the sticking point becomes flexibility: do you care and if you do how to apply and how much extra for a software update. This may limit you to just tuners with remote tunes, or it may not.
If Local tune < AA simon tool cost ( no software) OR Local < AA NonRemoteOption Then
do Local because its cheap
If Headers AND dont trust O2-sim than
do Evolve
Else
do AA
If experiential_desire
do p-torque
If support is important
do Evolve
If indifferent
decide AA vs Evolve