Ciphernames

[Bill Vlahos]

Here are the AES results for ciphernames:
aes-128-cbc,128
aes-128-cfb,128
aes-128-cfb1,128
aes-128-cfb8,128
aes-128-ecb,128
aes-128-ofb,128
aes-192-cbc,192
aes-192-cfb,192
aes-192-cfb1,192
aes-192-cfb8,192
aes-192-ecb,192
aes-192-ofb,192
aes-256-cbc,256
aes-256-cfb,256
aes-256-cfb1,256
aes-256-cfb8,256
aes-256-ecb,256
aes-256-ofb,256
aes128,128
aes192,192
aes256,256

What are the differences between cfb, cfb1, cfb8, ecb, and ofb  
variations? Is there any reason not to just use the last three vs the  
other variations?

Bill Vlahos