I would consider Haystack to be the more batteries-included, easier to use (but harder to customize) of the two. They have a good emphasis on local model use.
Thanks :) Working on it. Re local models - indeed, all started with using the Transformer models for extractive QA and semantic search. With the Promptnode, and/or the Agents it's also now possible to combine local models/pipelines & 'LLMs' freely.