Which one should you pick? Depends how much you want to do yourself. Quick version:
Pretty templates and easy to use. You pay monthly, and your site will look a lot like other Squarespace sites.
Lots of freedom, which makes it easy to end up with a messy site. Also a monthly fee, and it is hard to move your site out later.
Very powerful. It also needs updates, plugins, and security upkeep, which is a lot if you just want a nice site.
Made from scratch for your business. Fast, no template, and you own it. The trade-off: changes go through me. Edits are $100/hour, and I keep them quick.
Want to do it all yourself and do not mind the monthly fee? A builder is fine. Want something that looks like only you and does not need babysitting? Custom.
Also: Web design in NYC · How much does a website cost? · How I build sites