Opinions on the best brand are usually based on opinion and preference. As a rule of thumb for most users, a Pentium processor-based computer with at least 8 GB of RAM is the standard baseline for a system. The higher the processor (i3, i5, i7, etc…), the faster the system will generally run, and the higher the RAM, the more applications and multitasking your system will be able to handle. (Keeping several applications open simultaneously, cutting and pasting, etc…) Hard drive space is relative to how much data and applications you currently use and plan to have in the future. Solid State Drives (SSD) process requests much faster and are less likely to fragment and thus last longer.