Rather than give my opinion on what mode is better, I will say get the radio/technology that is most common in your area. In the Detroit area for example, we have more fusion folks. Regardless of what you purchase, you should consider getting a hot spot. A hotspot gives you more control by essentially having your own local repeater that is linked to the internet to extend your range.
If you are on a budget, don't have much tech knowledge with computers, and impatient, just get an Yaesu FT-70 and an mmdvm hotspot from amazon. With this combo you can do everything.
If you are more of a tinker type.. get a Radioddity GD-77 and flash it with the OpenGD77 firmware, and an mmdvm hotspot from amazon.
If you have money.. get a Yaesu FT5D and either an OpenSpot or TGIF Spot.
If you really like to hack away.. get an Anytone 878.
“Pi-Star is a software image built initially for the Raspberry Pi (produced by the Raspberry Pi Foundation). The design concept is simple, provide the complex services and configuration for Digial Voice on Amateur radio in a way that makes it easily accessable to anyone just starting out, but make it configurable enough to be interesting for those of us who cant help but tinker.”
These are a few of the options out there.