Einie, meanie, minie, mo....
You will see a lot of us have multiple machines. That proves there no BEST machine. Hunting conditions change but so do we. Our ears learn to pick up different nuances. Our body strength increases or decreases. Budgets improve. Expectations and objectives shift.
Best advice I can give you is contact several multi-brand dealers and spend time with them. Tell them where you WILL hunt and where you WANT to hunt and hope to find. Be honest about your physical limitations. I have a neuro muscular issue and weight is a huge factor. Don't buy a machine you can't enjoy using. And be VERY honest about the time you can and will spend hunting. And your learning capacity. Good machine are complicated and take months to learn. Are you willing to spend the money and time or will a less complicated machine serve you better?
Good luck. (Start with an Ace 250).