I hope you are planning on doing rotations in both to help you decide.
The day to day job of the pathologist does not just involve looking at slides. Unless you work for one of the pathology "mills" that sit you at a desk and bring you slide tray after tray. The normal private practice job will spend part of the day with slides, part of the day "grossing" in the complicated specimens (or not depending on if they have a very good Pathology Assistant), attending meetings, handling clinical path duties (blood bank, chemistry, etc..), plenty of paperwork, performing FNAs (fine needle aspirations), performing bone marrow biopsies (in some places), performing autopsies and talking with a ton of physicians. I am sure I left out some things. Right now i spend about 3-4 hours a day looking at slides. And, there are subspecialties of path who barely ever look at slides.
As for pay Rads is hot right now, but who knows when it is time for you to find a job. The job market for path seems to be pretty good right now judging from the graduates my program has had lately. I do not know the pay scale for rads, but for general path you can expect starting near $180K with partnership in 3 years then easily >$200+++(depending on the practice). Certain fields of path, such as cytopath and derm path will make much more.
As for someones assertion that looking at slides can be tedious, sure sometimes it can. If so I take a break, listen to some tunes, take a short walk and come back to it. I imagine that looking at xrays can get pretty tedious as well. And, I don't make my own slides histotechs do that. I do gross in the complicated cases, if that is what LoneSeal was talking about.
The future for path is also very bright. The push toward less invasive proceedures have made cytology a booming business. As the baby boomers get older, surgeries will continue to increase, therefore path will get more and more specimens.
When comparing rads and path I would say both have similar lifestyles. Generally dayshift jobs with easy call. This is not true if you are talking about interventional radiology. In residency I take call from home about 6 weeks a year. Last year I ended up having to come into the hospital about 3 times while on call. Otherwise I just answered questions from home. I also had to work about 6 Saturdays over the last year.
Getting the residency of your choice is much much easier in path than rads. But, path is getting a little tougher. Applications from US grads are up. Some programs are competitive. And, with the change in path residency to 4 years instead of 5, I imagine a few more people will give path a look.
Hope this helps some. If you have any other questions fill free to email me or ask on the board. Hopefully we will have a pathology forum soon. Hint Hint Kimberly Cox.