Best Toilet Paper - for comfort and paper strength.

Charmin Ultra Soft has the biggest fan club.
Quilted Northern (Soft & Strong and Quilted Plush) has a higher rating and price.
Cottonelle Ultra

Sources:
Consumer Search
Ask MetaFilter
Good Housekeeping  (Has a chart with pictures and scores)
Smart Canucks
Personal research.  I joined the Charmin Ultra Soft fan club.

Cheaper solutions with a good name for comfort and strength:  Costco Kirkland brand and Walmart White Cloud.

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