I've been very partial lately to anything ORCA tuned, i'm not sure if it's placebo but it always feels like they're just that much smarter and have a bit more ability to think things through
for instance, I have a character in oobabooga, and in its description/pre-prompt I told it to ask questions about what it doesn't know with "It only answers questions it knows the answer to, choosing to ask for additional context when information is unclear." and anything that's tuned on orca is 10x more likely to actually consider what it doesn't know and ask for context rather than hallucinating information
lately I've been playing with Dolphin which is llama 1 based, and it's an absolute pleasure https://huggingface.co/ehartford/dolphin-llama-13b