I believe that for small sites, the main aspect that differs between them is how peer discovery/name resolution is done. For this, IPFS has the most distributed approach (using a DHT and IPNS) but is also the most fragile and highest latency one. DAT has plans to switch to a DHT in the future (hyperswarm) but relies on centralised DNS discovery servers + local network multicast right now. Secure Scuttlebutt takes a more social approach and organises its network in terms of pubs. There is no central discovery, you can only find users that you "meet" in a pub.
This means that DAT has the most website-like feel because their solution provides low latency (only DNS lookup) and is global. I also think that DAT is much more pragmatic compared to IPFS thus at the moment it is much more stable and its us ability is better (also because it has more focus on stable, core components compared to IPFS which is a bigger project trying to do lots of things at once). I like secure scuttlebutt's idea of focusing on communities but that is a different approach to how the web works right now.