Vacuum Cleaners Discussions

On housekeeping, maintenance and carpet care sites are dire warnings NOT to use a rotating brush vacuum because it will 'untwist' and 'fuzzy' the tips.

On the Shaw site, it uses the word "shag" in quotation marks, implying cable,shag, and frieze fall under the same maintenance requirements.

So, what would your top picks be, both vacuums and attachments, for vacuuming frieze,cable, and shag carpet? Some include berber in this suction only maintenance category, along with handmade rugs. So, what do you say should be used, considering some carpets have a 10yr. appearance retention warranty provided the care instructions are followed.