I cannot recommend any one.
Each one have its own use case and is nice that Alby is offering these various options for backend funding.
LND - I would run it in neutrino mode (no need for full bitcoin core) so it can run on a simple linux machine with Alby Hub. This is more stable as a node and you have more options to expand.
LDK - I would run it with own Esplora server. The default setup is going to use Blockstream public Esplora server, and is quite slow and heavy used (it could cause sync issues for your LDK node). That means you would need to do additional steps to install Alby Hub.
PhoenixD - the simplest and quickest one, no need for channel management, can run very easily on any linux machine. The only downsize is that you are charged the Acinq fees and you are in a walled garden of liquidity with unique LSP. But for some nostrr zaps is just fine.
Ecash - simplest, fast, custodial, no option (yet) to backup tokens. If you need a quick disposable Alby Hub setup, this is a nice solution.
Greenlight - you need an API invitation code
BreezSDK - you need also a API invitation code