I made a sample in Audacity and it was saved as a wav file. Am I able to open it up in Reason??

BTW what is the best way to sample sounds and music so I can use it in reason or Logic?

Any .wav file can be open in Reason. I'm new to Reason but the tutorial said so. I guess you can open your .wav sound file but opening it through one of the "instrument". Click on the folder icon of the "instrument" and locate it on your hard drive.

I am not a reason user myself but my understanding is that it cannot record or import audio, it handles MIDI messages that can be exported (bounced) as a wav or aiff audio file. I'm sure you can drag your wav file into a sampler inside reason and trigger it from there via MIDI.

Logic is a full-blown recorder. You can record audio into it, or import it. It will handle everything from aiff, wav, SDII to mp3 and AAC (in version 7.2). Then you can edit and process it to your heart's content, or stick it into the built-in soft sampler to trigger it via MIDI messages. Reason can also be rewired into logic to act as a MIDI triggered sound generator. All of this of course adds to logic's complexity.

Samples are just recorded audio snippets, so logic would be the logical choice (pardon the lame pun)

Yes you can open wav files in Reasons, you do it thru the samplers. Reasons does not sample sounds, you have to use Logic to do that. Reasons is not a DAW (Digital Audio Workstation) its a glorified Midi workstation that does so much more.

You can use NN-XT or Redrum to open the wav file.
Use the 'Add sample' button to do it then save it as a patch.