Melee is mostly bound to weapons and the actual level of your character doesn't matter
Well, if progression is the only thing you care about, spell casters will give you the best experience as a new player because they literally scale as you level up. In fact, the only thing that will give you significant damage boost is going to be the level of your main spell. Difference in damage between a level 20 and 21 spell gem is going to be around ~15% increase. Level 20 vs 24(so a lvl 21 gem with a lvl 4 empower support) would almost double your damage.
Melee is mostly bound to weapons and the actual level of your character doesn't matter. If your weapon is bad, so will your character. There are hundreds of leveling unique weapons and most of them are going to be better than whatever you can get from a spell. Melee doesn't require constant increase in links, either. Just change your crap weapon for a better one and you're set to continue your journey.

Mar
poe4orbs:PoE 3.10 Delirium Templar Popular Starter Build
PoE 3.10 has arrived! Are you ready to take on new challenges? Take a look at the PoE 3.10 Delirium Templar Builds (Guardian, Hierophant, Inquisitor) prepared by R4pg for you!

Jan
ID depend on it for sketchy gear ok es and high HP Rolls
Golems were pretty weak as far as minions go, especially considering how difficult it was to get multiple golems compared to say, Spectres.

Oct
This is my honest feedback - Path of Exile Designers
This game has a unique feel and it is not easy to offer a self contained and well defined experience nowadays. Path of Exile is grim, compelling and harsh, in a good way.
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Dec
poe4orbs:[3.9]PoE Metamorph Shadow Builds (PC,PS4,Xbox,Mobile)
Welcome to the best PoE 3.9 Shadow Builds brought by R4PG. Choose your favorite ascendant from Assassin, Saboteur, Trickster and start your Metamorph journey!

Jan
Best PoE 3.13 Ritual Ranger Starter Builds
Many of the builds in this PoE 3.13 Ritual Ranger Builds guide are good for starter that are popular with many players. For the three ascendancy classes of Deadeye, Pathfinder and Raider, the focus of each build is also different. Hope it helps you.