Leon - I have never used linkssql so Im not really qualified other than to say that I know of at least 4 other WMs that wouldnt use anything else and they do fantastic in the SEs as well
I also am not a great fan of link admin, but that is based on support problems (not general but things like getting mods made etc) but I do own 6 copies I think
The next LL Im working on is going to be a LinksSql one so that I can make a better judgement