[Help] Rank each startup based on their likelihood of success

I'm looking to invest in eight different startups, but I'd like to know your thoughts about which companies will likely become successful in the long-run. Advance thanks to those who will provide their suggestions! 🙂

1. Startup #1

This startup company develops an app that matches students who have free time to run little errands with students who don't. In-app cash will be assigned to each errand (similar to debits and credits).

2. Startup #2

The project entails developing an application that gathers information about location, availability, and charges from of the websites of car-sharing businesses (such as Evo, Cars to Go, and Zipcar).

3. Startup #3

The project entails developing an application that gathers fashion clothing goods in one place and allows users to compare what they want to what is available. The concept is based on a Spanish application of a similar nature.

4. Startup #4

The plan is to open a restaurant where customers will be able to reserve their own booth and choose their own music, atmosphere, and food. There will be no servers, and the food will be delivered via a booth conveyer in the wall. The concept is to provide a one-of-a-kind integrated experience that is tailored to the needs of each individual guest.

5. Startup #5

The project involves offering meals to students who do not know/do not want to cook/go to restaurant/have a takeout. The meals will be delivered on an agreed-upon weekly schedule.

6. Startup #6

The goal of the project is to develop an app that will pair students with similar interests and lifestyles as housemates (in apartments and houses). The programme will provide extensive matching criteria as well as a roommate rating system.

7. Startup #7

The goal of the project is to develop an all-in-one “smart” collar for pets (primarily dogs and cats). When warranted, the collar will combine GPS and important health information and warn the owners.

8. Startup #8

The goal of the project is to create an information/travel gateway for newcomers/tourists to a certain new city/town/environment.