Leaf Doctor	Gutter Helmet	Leaf Filter	Leaf Guard
Price	Very affordable!	2-3x the cost of Leaf Doctor	2-3x the cost of Leaf Doctor	2-3x the cost of Leaf Doctor
Installation Process	Can be installed without compromising your roof shingles	Shingles must be lifted to install this product	N/A	N/A
Appearance	Sleek, low profile design that is virtually undetectable.	Bulky, design with a very noticeable 2-inch high profile	N/A	Bulky design, dirt tends to collect on the front of this product making it very unattractive.
Customer Satisfaction	100% success rate!	N/A	N/A	N/A
Will it work with a metal roof?	Yes!	No! Must be installed by lifting the shingles of the roof.	Yes	Not very effectively, water runs over