Tier 1 link building software suggestions

What is Xrumer like these days? Does it still work?

GSA SER is still number one for me, if I *have* to use a software. Although I would only use it for blackhat projects.
It has frequent updates, good success rate and great for the other tiers as well. You can also subscribe to SEREngines for $15/month if you want to automate Web 2.0 creation. I used UD for 30 days... completely useless in my opinion if you have SER.

What about magic submitter? I have heard it is doing a good job.

I haven't used magic submitter, but I hear people complain because it's buggy.
Also, $67 per month for MS vs $99 one-time fee for GSA SER? And SER is still the better choice in terms of functionality.