@Renz2018 Welcome to the forum!
- If you're instrumenting your application with an OpenTelemetry SDK, use the OpenTelemetry Collector exporter
- If you're instrumenting your application with a Jaeger client, then use APM Server's Jaeger intake
Apart from the fact that the Jaeger intake is a bit more mature, as it was developed first, a couple of other reasons why you might want to use it for now:
- as it is Jaeger-specific, it takes into account details like Jaeger's sampling tags in order to calculate accurate metrics
- it supports Jaeger's remote sampling API, so you can configure the sampling rate dynamically
If you're using the OpenTelemetry SDK in your application, then the above points are irrelevant.