Your software is irrelevant.
The features and whether you're comfortable in the software are the only things that decide your software.
(Unless you go for ProTools which will involve spending £$ on a proprietary, necessary interface (which won't hiss much because it's high end)).

Also, if you're plugging a headset or desktop VoIP mic into a pink jack anywhere on your PC, this is the reason you have noise. It's a pink jack, and you get pink noise.

Based upon its mathematical objective, all software should produce identical results. The only differences being, its features, workflow, your talents & experience. The features and its operational capabilities can make one software appear better than another. When in fact, there is no one single stop shop that can accomplish everything. Close may be? But not everything. And so many of us have numerous different pieces of software for certain specific features. Those being what you need, provided you know what you need?

Adobe Audition & Sony Vegas are the two I can't live without
Ms. Remy Ann David

Software doesn't create hiss and noise. Hardware does. Unless you have software that's designed to specifically create hiss and noise. And, using software and/or hardware wrong can either or both create hiss and noise.

Hope that helps clear things up!

Kapt.Krunch

You have some good advice above. The problem is that you are using noisy hardware. It might be the mic or the sound card or both. You may want to mention what hardware you are using.