The Belgariad by David and Leigh Eddings. A fairly linear, traditional high fantasy. Probably my favorite series of all time. The likability of all characters, the plot, the strife, it all adds up to be probably the greatest compilation of story-telling (not writing, Eddings was never a big fan of being called a "writer", but rather a story-teller).
The Mallorean by David and Leigh Eddings. Part two of the Belgariad epic. Very similar plots, almost all of the same characters, but still just as likable as the first series.
The Name of the Wind by Patrick Rothfuss. A relatively new author in the scene, I find that his books are very similar to the style of writing I use. He uses human nature as a great driving point behind his books. The second part of the Kingkiller Chronicles was released TODAY. Exciting!
The Sword of Truth by Terry Goodkind. There are a LOT of books to cover here. Terry Goodkind is the very best author at making you absolutely despise one character and absolutely fall in love with another. When you read Wizard's First Rule, you will absolutely fall in love with the female Protagonist, want to be the male Protagonist, and want to murder the male Antagonist. He is great, but expect a lot of time investment to read this series.
The Lord of the Rings and the Silmarillion by J.R.R. Tolkien. I know, I know, cliche addition to this list, but the grand-daddy of high fantasy should get a mention, if only for the Silmarillion alone. Granted, Tolkien's writing style is much like listening to somebody's day about every little detail that pertained to their day, lots of respect has to be given to this man. Without him, modern fantasy would not exist as it does now.
Of course, this is just a basic starter list, and there are many, many more I could recommend, I figure the 26 books listed here should be of interest and keep you busy for quite some time.