Just try the different machines that you are attracted to and make your decision on what works for you.
I have a Brother Laura Ashley and LOVE it. I feel challenged by it to learn new skills and use the many stitches it offers. It's been great for me so far. I knew when I tried it at the shop that we were meant for each other. I know it's not everyone's machine though and love to see when someone feels about their machine the way I do about mine.
Try them all, where ever you go. You will find your machine.