Seneca College vs Centennial College (both in Toronto area, Canada) — comparing for Indian students:
Seneca College: large GTA (Greater Toronto Area) institution with multiple campuses. particularly strong in business, technology, and aviation programs. good co-op and placement record. Newnham campus is the main one. well-regarded for aviation management uniquely.
Centennial College: strong for engineering technology, hospitality, health sciences, and community services. East Toronto/Scarborough campuses. slightly smaller profile than Seneca nationally. good for engineering technician programs.
comparison: for most tech/business programs, Seneca has a slightly stronger reputation and larger industry network. for engineering technology and health programs, both are comparable. location-wise, both are in the GTA which is excellent for post-study employment. fees are similar for international students.
choice depends on your specific program. research the program rankings for your field specifically at each institution rather than just overall college ranking. both are genuine, quality Canadian colleges with strong post-graduation work permit eligibility.
My friend is a graphic designer. He completed his studies in Graphic Designing from Toronto itself. According to him, Sheridan College in Oakville is the best choice for graphic designing courses, followed by George Brown College. Centennial has a dedicated school for this subject.
Seneca and GBC offer graphic designing lectures on PC, while Centennial uses MAC for learning purposes. MAC is more popular among graphic designers because it offers a smoother experience for many design softwares. Even if such softwares have a PC version, they require less keystrokes/steps to complete a task on MAC.
With so much diversity, Toronto is the hub of Canada's top restaurants and hotels. Hence, hospitality management is a popular option among international students in Canada.
GBC offers a specialty in cooking, baking, bar, and wine. You will learn from expert faculties offering dynamic education and preparing future taste-creators. The college grants dynamic training from in and around the world. Students are at cutting edge of innovation and take pride in opportunities they create by connecting with the school's industry professionals in the field. The following table gives the basic highlights of both colleges:

Seneca's School of Hospitality and Tourism prepares its students for a vibrant global hotel and hospitality industry. Students will not only get an opportunity to closely associate with their peers and professors but also practice through paid works. The school is being certified by various industries including Smart serve, First Aid and CPR, Guest Service Gold, etc. Service Leadership, Teamwork, and Decision making are some of the skills that students tend to develop through the program. On completion of the course, students turn really professional owning a deep-rooted knowledge in the market of Hospitality and tourism.