I won't give up on beef. It's too much a staple and one of the few ways I get enough protein. I grew up eating unflavored hamburgers, so tasteless is normal to me. :P I'm sure the lack of flavor you get is going from regular cut beef to lean. No matter what is said, cutting fat from meat does cut out flavor.
I like chicken and turkey well enough, though they have this weird texture when used for sandwiches. Ham is great when it can be found/cut in lean portions.
Starting weight: 310# December 2011 (heaviest)
Goal weight: 250# November 2012
April 1 goal weight: 262#
Ultimate goal weight: 150#