jobel overall quality? What settings are you using, and are you referring in quality to the unedited file created by OBS? There's a lot that goes into recording, and even little things like compression quality vs. speed can make a visible difference.
The only reason FRAPS has amazing quality is because there is no compression. It's just writing all that huge amount of data straight to the disk.
OBS can compress on the fly, and I believe does so by default.
And if I'm remembering correctly, Bandicam can also do compression, but the difference in quality again comes down pretty much to codec, compression, & other software settings, and not the software itself (unless you're using some poorly-coded/obscure freeware). Hence, and solely in my opinion, the best software for recording is free and/or open source software (although if FRAPS was current it could be justified by low price & ease of use).