Bottom line, you're in a "golden age" of lighting. The worst choice you can make will probably be better than the best decision from 10 years ago.
The ultimat is probably a front wheel SON hubset generator with standing lights front and rear, but the USB rechargeable LED lights are getting cheaper and more powerful and better values, if you can remember to charge them up between use.
Really hard to make a bad choice, just make the one that's best for you.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.