@PhDCPA
Thanks for your reply. I apologize if my post was unclear, I myself am a bit confused and am in the middle of trying to sort this out.
In general, I am more interested in working in tax.
In my second question, I meant less desirable to Big 4 firms.
Although I still have about 1.5 years before I finish my Master's degree, it does not appear realistic for me to pursue a PhD. Of course things can change, but taking not going for a PhD into account, I have to weigh my current options. I was told that going to a Big 4 firm would be beneficial because from there it is easier to move on to a smaller firm, and after the first couple of years I will hopefully be able to cut down on the crazy hours at a Big 4 firm. It's better to do it sooner than later so that I can get it done already, and also if I stay for a while longer at my small firm doing the same things I've been doing for the past few years, it may not seem as appealing to someone recruiting for a Big 4 firm. I don't think I have heard exactly why that is, but I can kind of understand how it might be better in certain cases to have someone more new and fresh to teach everything to, rather than someone who sort of has his/her own ways of doing things based on past experience that may not be so applicable.
I haven't heard strong arguments from people regarding experience in a Big 4 firm being beneficial for teaching. One person who worked in a few places including a Big 4 firm and now has his own practice had said that the work experience would be beneficial. However, some teachers that I have spoken to did not necessarily say that…some seem to feel it's more like two separate routes and people usually go one way or the other. I plan on talking to some more teachers so maybe I will get other opinions on this.
I guess if I want to teach at some point without a PhD I would do adjunct…I feel like every few weeks what I think I'm going to do changes because I keep hearing different advice. I'm not sure which way I want to go and I know I am young and have time to figure this out. I just don't want to regret anything later on…