The question title says it all:
Are there any disassembler which provide a feature set comparable to IDA Pro?
I'm interested in both free and commercial products. Please use one answer per product and if possible write a short comment about it, like "easy to use", "many features", "only support for PE files", ...
Thank you!
Not to my knowledge. IDA Pro is clearly the best disassembler around. To the point that even the free (old) version of IDA (4.9) doesn't have a real challenger.
For the sakes of providing a comparison, you might want to try PVDasm
IDA Pro is a commercial licensed product and so has the funding to put the advanced features in place like graphing of jumps. There is also free version of IDA, although I'm not sure what functionality has been removed.
A free alternative is OllyDbg. Another is [PEBrowse Professional Interative] (by Smidgeonsoft - I can't post more than 1 link), but I haven't used this one yet.
In all honesty, IDA Pro is worth it, if you are seriously considering a debugger/reverse engineering tool. There isn't anything like it whatsoever on the market.
Hope this helps,
Dominic