based on various consumer report deals I found online I went with an aquaclear...it was consistently rated the best and personally, I havn't had any problems with it.
yeah, whispers are OK, but not the greatest longevity. I only have them because they came in a kit. I'm going to upgrade to Aquaclear probably. I like BioWheel, too, by Penguin (Marineland).
I am very curious to know what everyone thinks I have penguin and whisper filters but I am looking to add some filteration and upgrade some of my filters so the input may sway my decision I really like the penguin but it is noisier than my Whispers but the whisper moves a lot of water fast. How does the aquaclear filters compare? are they more durable etc?