Except right now, GPT-4 is the best LLM in terms od performance/capabilities, by a large degree; every other one is strictly inferior, and they all share the same architecture and training methodology. So it's like comparing cars from 10 years ago against a top-of-the-line Toyota from 10 years ago and top-of-the line Toyota from today (or BMW, or whoever does quality cars; I'm not a car person).