I have worked mostly medical and surgical units throughout most of my nursing career, and have always preferred surgical patients over medical patients. Today's patients seem much much sicker with a complexity of medical problems -- today's surgical patients are the same. It's rare to admit a surgical patient who comes in for one thing and discharged a few days later. Many of today's patients -- medical or surgical -- are sick, sick, sick and stay for days on end, and it is no longer the senior citizen and geriatric population staying longer, but many young adults as well.
Still...........surgical would still be my choice. Medical patients are diabetics, COPDers, Pneumonia, AIDES, CHF, TB, other respiratory ailments, patients in chronic pain whose pain cannot be resolved, cancer patients, etc. Surgical patients can have the same medical ailments, so you are still dealing with the "medical side of the house" on surgical units.
Honey......there is noooooooooooo easy nursing unit these days. Buy some comfy scrubs, comfy shoes, eat your cheerios for breakfast, and get as much sleep as possible before you go to work and be prepared to run your buns off, sweat, work under a lot of stress, and rarely be appreciated or respected. If you can deal with this part of nursing, the "happy moments" that may come your way on the job will be all the more welcomed.