A Japanese VPS is a location decision for Japanese users, local integrations or a service that needs a predictable route to Tokyo or Osaka. Singapore and US West can be useful Asia-Pacific alternatives, but they are not replacements for a Japan-specific latency test. Confirm the city, bandwidth and included traffic on the plan because regional product lines often have different terms.
For a global product, do not choose Japan simply because a provider brand is familiar. Compare this table with Singapore and the USA, then test from the actual market. Once the location is set, resource sizing follows the same rule as any VPS: match RAM and disk to the application rather than the cheapest headline price.
Straight answers about ranking methodology, pricing and choosing the right plan.
Japan is usually the safer starting point for a Japanese audience. Singapore is strong for Southeast Asia. For a multi-country product, test both routes from the markets that actually use the service.
Not necessarily. Regions can have different availability, bandwidth limits and pricing. Read the exact Japan-region tariff rather than transferring assumptions from a US or EU plan.