As far as I can see its always the addresses with the biggest amount. Here 444444.
Not aways, it depends on the amount.
Here's a similar scenario created in testnet:
UTXO: | 0.0028tBTC output amount: | 0.001tBTC output amount: |  |  |  |
|
Why ?
Electrum is prioritizing "
privacy" on its coin-selection before "
efficiency".
This comment in Electrum's coinchooser.py script (
that) explains it in a nice way:
github.com/spesmilo/electrum/blob/master/electrum/coinchooser.pyBonus if you can read python since you can check "
why" right there.